I've recently had similar problems. I wanted to upgrade to CS3 and Tiger. I'm currently running on a Digital Audio 533 upgraded with a 1.2 ghz Sonnet processor with 768 mb RAM. I purchased 512 mb stick from Office Max (I know, this was my first mistake). After installing and checking - everything read correctly in the Profiler. But, common applications like Flock would shut down. At first I thought it was a problem with a "Clean Sweep" script I had to run on the computer because of a PhotoShop Beta/CS3 issue. But, after numerous problems I simply un-installed the CS3 suite and was never able to finish the Tiger installation. When I continued to have issues with my old CS2 suite and Flock browser problems, I took out the new memory. I've had to re-install Flock and CS2, but everything is running fine now - except under my wife's account ... she's still having Flock shutdowns - even though we're using the same program from Applications Folder?! Anyway ... I'm holding off installing ANYTHING new until I can get some recommendations from some experts. ~teej > > > -----Original Message----- > From: g4-bounces at listserver.themacintoshguy.com > [mailto:g4-bounces at listserver.themacintoshguy.com] On Behalf Of johnnyg > Sent: Monday, February 04, 2008 8:04 PM > To: G4 at listserver.themacintoshguy.com > Subject: [G4] memory problem in dual 867 > > Hi, > > I just purchased from OWC a 512 memory chip to put into this newly > acquired mirror doors with only one 512 slot taken......however, after > installing the memory, I have had freezes kernel panics and other strange > attrocities often. I moved the memory about in different slots and tried > resetting the pram, and pma. No help so I removed the memory and > everything is smooth once again. Is there some magic I should put into > service here or do I likely have a bad memory chip? OSX10.39. > > Thanks. > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://listserver.themacintoshguy.com/pipermail/g4/attachments/20080205/6a90cade/attachment.html