Hi! Since I have my new Mac Pro, i had a lot of trouble : first it keep freezing. I called Apple Care, they made me do a couple of thing. But nothing work. I did a fresh install of my computer and the problem disappeared. A couple weeks later, I started to have problem with my screen. Like a weird glitch like the graphic card of the screen was broken. I called back AppleCare and they asked me to try to find when the problem was happening. Really hard to tell. Freeze came back in the game too. I was really pissed off. So since last week, i turned off my external Lacie Drive - it was always open - (don't ask me why i try this, i was desperate haha), and i have no idea why, but all the problem disappear since then. I hope its over for good. Could it be possible ? And why an external drive cause so much problems to my new little Mac Pro ? Is there anyone here who had so much trouble like I had ?