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    Quad-core MacBook Air?

    I have a mid-2011 13" MacBook Air that I always thought was a dual-core machine (it's a 1.7 GHZ Core i5). In fact, Apple's "Tech Specs" page lists it as a dual-core CPU with 3 MB shared L3 cache. But Activity Monitor seems to think it's a quad-core part. The "CPU" tab shows four cores, as...
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    What does "Documents & Data" in iCloud actually do?

    I had initially assumed it synchronized iWork files between Mac OS X and the cloud, which would be nice because you could edit, e.g., Pages files on your iPad and your Mac. But syncing of iWork docs seems to work only among iDevices running iOS 5. Then I thought maybe it synchronizes iWork...
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    Filesharing Changes in OS X 10.6.5

    I've noticed a couple of changes to filesharing that seem to be associated with OS X 10.6.5. It appears that folders that are shared via ACL, specifically folders on volumes other than the startup volume, are no longer visible via filesharing over the network. This appears to be the case not...
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    What activities wake a screen?

    I have this situation on a couple of my Macs, one a PowerMac G5 (DP 2.0 GHz, 5 Gig RAM, 250 Meg/500 Meg HD), the other a Mac Mini (Core Duo 1.6, 1 Gig RAM, 60 Gig HD), the PowerMac running Leopard and the Mini running snow leopard. Both machines are set to sleep the display after about ten...
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    Speed advantage of installing RAM in groups of three in "Nehalem" Mac Pros?

    I understand that there's a speed advantage to installing RAM in multiples of three DIMMs in Nehalem Mac Pros. But I'm curious as to the magnitude of that speed advantage. I'm trying to decide whether I should configure my Mac Pro with 6 X 2 Gig DIMMs for a total of 12 Gig, or 8 X 2 Gig DIMMs...
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    What does "Push Sync" actually mean?

    Okay, I can get my .mac mail and my POP server mail without too much difficulty, although if I try to get e-mail where I can get neither Wi-Fi, 3G, nor EDGE, mail will eventually stop even trying and then I have to power-cycle the iPhone to even make it check for mail. I can live with that, I...
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    Printing to Airport Express Base Station

    I've upgraded two Macs (a Mac Mini and a MacBook Pro) to Leopard, and both have lost the ability to print to the Epson CX5000 connected to my AirPort Express base station. The Mac Mini, which is also connected via Ethernet to my home network, can print to the CX5000 as a Bonjour printer...
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    Upgrading from OS X client to server

    Is it possible to do an in-place upgrade from OS X client to OS X server, without having to recreate user accounts and reinstall applications? I'm considering installing OS X Server on my main machine (a dual 2 GHz G5), but I might not do it if I have to reinstall all my applications and...
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    Redlining fans on PowerMac G5

    This has happened three times so far in the past week, and I'm thinking it's a hardware problem somewhere. Here are the symptoms: An idle (but not sleeping) PowerMac G5 locks up completely (won't even return a ping), and the fans spin up until they're running full-blast. The only thing I can...
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    Apple File Sharing on a local network

    I have what should be a pretty simple question: how do I get AppleTalk shares to show up in the "Connect to Server" dialog? I've never had to get an answer to this question, because I've always gotten it to work in a completely different manner. My home network consists of three Macs...
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    Syncing Bluetooth cellphone to multiple Macs

    I have a Sony/Ericsson cellphone that I sync to my G5 via Bluetooth and iSync. All my current Macs (G5, G4, G3 iMac) are synced to each other via iSync and my .mac account. My question is, is there any downside to syncing my cellphone to multiple Macs? I'm planning on purchasing a 17" MacBook...
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    Attacks via SSH

    I have ssh enabled on my machine for remote access. Hey, it's better than telnet, right? Anyway, I was perusing the /var/log/secure.log file, and noted a lot of failed authentication attempts against what appears to be guesses of accounts on the machine (e.g., "test," "root," "user," "admin,"...
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    Security threat? Exploit attempt?

    I was going through my system log recently, for a completely unrelated reason, when I came across the following entries: Feb 27 17:04:23 DeepBlu DirectoryService[38]: Failed Authentication return is being delayed due to over five recent auth failures for username: <user2>. Feb 27 17:18:06...
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    Dysfunctional junk filter in Tiger Mail

    I have three Macs (G5, G4, G3 iMac) all running the most recent, fully-patched version of OX X 10.4. All three machines are synchronized using .Mac sync, and I have the same account on all three machines. About a month ago, two of the machines' junk filters simultaneously stopped working...
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    CPU stats on DP Systems

    I've noticed that, in Activity Monitor, CPU utilization figures appear to go to 200% on DP systems (presumably, 200% means both CPUs are maxed out). I've seen individual processes exceed 100%, so it's pretty obvious that 100% processor usage is only 50% of total available CPU cycles. My...
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    Graphics attachments in mail.app

    I've noticed an issue in mail.app that has me stumped. In general, when I've wanted to send someone e.g. a jpeg file, I've usually used the "attach" button and attached the file. Earlier (i.e., pre-2.x) versions of mail would display the graphics inline, as well as show them as attachments that...
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    Titles over clips in iMovie

    This is driving me crazy. All I want to do is place a title in a video clip. No matter what I do, iMovie wants to render it over black. I uncheck the "Over black" checkbox, drag the title onto the clip, and iMovie checks the "Over black" checkbox, and proceeds to render the title over black...
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    iMovie: importing and exporting DV clips

    I've been through the iMovie help files, and couldn't find any discussion of how to either export a DV clip from an iMovie project to a file, or move a VD clip from one iMovie project to another. It seems that once a clip is imported from the camera, there's no way to get it out of the iMovie...
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