No, I purchased a brand new card from BUY.COM - a "real" product. No changes other than just installing the card. It booted right up with no problem. (It still does, but with the lines!) "Did you purchase from a vendor or is it an Ebay purchase?(some of these are flashed PC cards) Did you try to update the card using ATI software? Any other changes since you installed the card? Brian G4 gigE 1.0 GHz Powerlogix, 1 GB RAM" On Jun 14, 2005, at 4:42 AM, deepthought wrote: > Hi, > > I just upgraded my video card to a 9800 128mb Radeon Mac edition card > and it worked great for about a day. From day 2 onward, I got light > pink vertical lines running up and down across my LCD monitor. They > appear on the whole desktop all the way up to the menu! > > I have a Sonnet ST 1gz upgraded AGP Sawtooth w/ 1.5RAM and had a 8500 > Radeon before the upgrade. I am also running Tiger 10.4.1 . > Everything was working perfectly before! >