So first time mac user here, Ive decided to finally take the mac plunge from PC and it's been frustrating tonight I was wondering if I did the wrong thing. I went on Tuesday to get the imac refresh and installed another 8gb of ram, the programs pop up extremely quick so I was very happy with that, however I would get random crashes with my safari while I'm surfing the web, whatever I figure I just needed to update safari. I poped in my starcraft 2 disc and it gave me an error while installing, thought it was weird but then just went ahead to do a system update, after I install about 955mb worth of data it gives me a error during installation I was then a little worried, tried it again error occurred once again. I went to the apple support site to download the 10.6 manually, once again I get an error while trying to installing. I went into app>disk utilities did a verify and it says hd is okay no need to repair anything, am I missing something? please help me last thing I want is a defective imac/hdd. I wanted this experience to be a good one from the get go.