MAC RESTARTS AND SETTINGS GO BACK AFEW DAYS? help please

[sarahdan]

Hi

I am a new Mac user and just love it! Problem is that occasionally computer freezes, or I need to restart it. When I do, everything seems to "go back" a few days, my calender, anything i bookmarked in Firefox is gone, even my emails, that i had deleted, come back into my inbox.

I find this weird.

Can anyone PLEASE tell me what the problem is and how i fix it.
I am not a geek, just an everyday computer user

Thanks!

 

[nixgeek]

When you downloaded Firefox and other assorted applications that are now experiencing problems, did you copy the application from inside the disk image (which mounted after you double clicked the .dmg file) to your Applications folder? If not, then this is probably why you've lost everything. You need to copy the application icon from the mounted virtual disk image to the Applications folder in your Mac's hard disk. After doing this, you can then launch your application.

Disk images are only temporary drives that mount when you double click the .dmg file. Once you restart or log out, they disappear (since they aren't actual drives but images of a drive).