i just installed windows 7 rc and everything went as smooth as possible. my computer is a dell inspirion 530 with 4 gigs of ram, 160gb hard drive, Intel Core2 Duo processor E4300, and NVIDIA GeForce 8300GS graphics card. the main thing i wanted to try was the new improved media center. the whole setup process went fine and i can play web tv, music, and see everything including my local channels in the guide. problem is that when i try to watch live tv it almost immediately crashes. i can hear the sound from the cable feed for about 1 second then the whole thing freezes up. i know the cable line is good because if i hook it up directly to my tv it works just fine. the tuner is a hauppauge WinTV-HVR-2250 Dual Tuner PCI Express TV tuner and i made sure the drivers were up to date. anybody have any suggestions out there? thanks!