Since last night they're have been some noticeable problems with this new OS. For the last week it has run splendidly... 1. After selecting to shut down the computer my G5 crashed for the very first time in 6 months. 2. Just 5 minutes ago the Dock froze. I can't hide it. I can't move it. It's just stuck there. I can still open apps with it but the magnification isn't responding nor are any other functions. I'm gettin' a lil' nervous here. What to do? Any ideas?