Greetings to all of you, I've used Windows 7 RC for 3 days now, and quite love it actually. But, from the moment I installed it, I had a weird issue. Whenever my computer (laptop/notebook (whatever you call it where you're from)) goes into sleep mode, (as it was configured by default after xx minutes (can't remember)), as soon as I wake it up, it appears to have "lost" the sound driver, as it says: "no audio output device is installed". But when I restart, I can use audio speakers with no problem. (took a while to find out problem was sleep mode, because with laptop/notebook I do --> close lid, unplug power cable -->move somewhere --> plug in power cable --> leave it for 30 minutes...... ) Summary, computer goes to sleep mode --> wake up --> audio driver is unavailable --> no sound output until restart.