System details? There is no real difference between the windows 8500 and the Mac version - the firmware does however differ and I believe the core clock speed is a bit slower on the Mac version. Note that Apple packaged updated ATI drivers with both 10.3.6 and 10.3.7. Do you have a disk/partition that you can reload 10.3.0 and the 10.3.6 updater onto to see if it fixes your problems (ie., 10.3.7 caused the instability). Also, what firmware are you using? For what it is worth, I have always had some issues with my Radeon 8500 (using S-video out). However, I have not experienced any system related issues. On 28 Dec 2004, at 13:03, David N. Paules wrote: > Did you ever find an answer to your question about identifying an > authentic Mac radeon 8500 card? > I purchased an 8500 from an eBay reseller and have also been > experiencing deadlocks. The deadlocks appeared at different times with > different OS updates. in 10.3.5 I had them while playing a game, but > then 10.3.6 fixed those issues. > Now I am seeing those deadlocks again in 10.3.7, but not in the game, > only in the process of waking from deep sleep. Grrr. The seller claims > the card was taken directly from an older Mac, but I don't believe > him. > > Dave Paules > _______________________________________________ > G4 mailing list > G4 at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/g4 -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/enriched Size: 1676 bytes Desc: not available Url : http://listserver.themacintoshguy.com/pipermail/g4/attachments/20041230/9606173b/attachment.bin