Ive been playing around with windows 7 since the first beta, and every few builds after that up to the current RC. I keep having the same problem with EVERY version though. I will install windows everything goes fine, it boots up and runs fine, until I install 1 of the updates, so I just choose to leave that 1 update alone. Other than that it works fine, but usually after about a week when I boot it up it will just blue screen, I can attempt to do a repair and that will usually fix it once, but after the second time nothing helps, and then I can't even reinstall windows 7, it will bluescreen before it can even get to the option to install to a hard drive. From there I have to put in vista delete the partition install windows, then I can go back install windows 7, its like the MBR is getting corrupted or something. I have run this thing on Vista for 6 months without a single problem, but its kind of strange I keep having this problem over an over! Anyone else having this issue? Im running this on a Toshiba laptop with an AMD 1.9GHz Dual core cpu, don't remember which model, 3 gigs of 800MHz ram, 120GB HD.