Hey folks, I have the first gen i7 MBP 15" - the higher end model, I believe 2.66GHz dual core. Except for a higher res glossy display everything is stock. Lately I've been experiencing massive slowdowns, and Finder has become extremely unstable. Even booting up has become a 5-10 MINUTE affair which is not normal. I tried moving a batch of 124 photos to a burn folder to burn onto a CD, and my system stopped dead. And I mean dead dead. The cursor turned to a beachball, but withno rotation. The cursor could move, but nothing was clickable. I thought my hard disk was conking out, so I ran through disk permissions and disk repair. Both checked out fine. I went through my 5 minute bootup again, and again I had the same problem. Finally I tried booting up, letting it rest at the login screen for 5 minutes, and logged in. I gave it a good 20 minutes of rest after it hit the desktop before doing anything, and I hit up Activity Monitor, and I reboot my computer, setting it to remember what was open at shutdown. The machine booted back up, and I let it rest again at login. Then I didn't touch it, and just watched Activity Monitor. As it was loading, Finder even found time to go "not responding." as the idle process went up to about 99.9ish, I tried copying the photos again. Again the thing froze, and I decided to call it a night, letting it beachball overnight. In the morning, it was still stuck there, some 8 hours later. My machine came with SL, 10.6 though I can't remember the last decimal point in the build. I have always kept her up to date, and I installed Lion at launch. Again I always keep her updated. I didn't do a clean install of Lion back then, if that matters. I keep my machine quite well defragged so I know that's not it. However with what I use my machine, I don't use the HDD for massive transfers often, but I do a LOT of small transfers. Sometimes my machine can stay on for days on end completing the job. Anyone can help?