I've had a few weird issues lately: Logging into account--begins to log in, see desktop, menu bar and dock load, but then screen goes blue and logs me back out to login screen automatically. Have to login again. Also had a kernel panic when waking from sleep to login window. I had Winswitch and JewelCase installed (iTunes was in starup items), I removed them and that hasn't happened since. On a recent login updating prebinding took 15 minutes Some app quits (not many), but Quicktime and Preview take long time to open now out of nowhere... While using Illustrator yesterday I noticed that my minimized windows and my Illustrator dock icon were to the right of the trash, I couldn't move them to the left. I tried relaunching the Finder several times, but no go...had to restart. In Photoshop, if I click from a photoshop window to a finder window quickly the finder window disappears... Now I have repared permissions, disk, run cron scripts, reset NVRAM and PRAM, run fsck, and run techtool pro and apple hardware test None of these problems existed before I added a gig of RAM from Crucial, so do these sound like RAM issues, if so, then why do the hardware tests and techtool pro say RAM is ok? And if it is the RAM, then why are the problems not frequent? Thanks.