I have a win7 x64 machine with utorrent installed. I could always put the machine into S3 sleep mode without any problem, even when utorrent was running.
Yesturday, I found out that my computer won't wake from S3 sleep and I was able to isolate the problem and found out that when utorrent is running my computer just won't wake. Pressing on the power button starts up the boot process as if I am resuming from regular hibernation and gets stuck on resuming windows.
I also formatted my computer recently and have no idea if the problem is with the new version of utorrent or my computer, but I couldn't find any infromation about it anywhere.