Not really I guess, but my Macbook Pro c2d is now behaving exactly as if you had blaster on windows xp... brings back good memories. So, software update 10.5.6... seems to have given a lot of people problem. Went fine for me, everything working. Boot up.. try to login, it logs in for about 30 seconds, then kicks me out to login screen! Login again, 30 seconds, back to login screen. I can use App's etc in the meantime, click around in finder, boot mail... until i get auto logged out. I have tried Safe Boot, using my guest account instead of normal login etc... nofin. Since SuperDrive firmware update wrecked my superdrive, I can't really insert OS CD's and do archive and restore... Suggestions?