Hi, I just bought the Mac Pro in Jan and sometimes when I do my work in photoshop, the software will shutdown unexpectedly, the other programs like itunes and msn messenger shuts down together as well, ad it turned into a blue screen for about ten secs, and it is like the finder would relaunch by itself. I called applecare, they are not sure if it is the OS or hardware problem. Anyone faced this problem? Really needed advice badly.