Apologies if this has been discussed elsewhere, I have searched for the past 5 hours! Anyway I've just bought a G4 Quicksilver 733mhz, with 1.5gb ram, 160gb harddrive off ebay and every thing is running sweet except any websites which use flash, eg youtube, bbc iplayer, etc or sites which have flash adverts, they appear choppy and unwatchable and really slow the computer down, but the audio is fine. My main browser is the latest version of firefox but I also have this problem in safari. I've updated to the latest version of flash player (10) but still no good. Other videos run fine in real player. My graphics card is a NVIDIA GeForce2 MX with VRAM 32 MB. Any ideas? I don't really want to upgrade the graphics card but if I have to then so be it. Many thanks.