Beta 1 7000 install went very smooth. In looking at the Device Manager I note System Interrupt Controller (listed 9 times) is showing error. I have tried "scan for hardware changes" and "install new drivers" to no avail. Running a Gigabyte GA-EX58-DS4 board with i7 920. I had installed the intel chipset .inf that came with the board. PC seems to be running fine (even my Auzentech sound card). Any suggestions? Or is this one of those "wait for them to make drivers for the new OS things?" LOL UPDATE: For some reason it (at first) wouldn't "search on line" for updates. After a reboot I tried again and was able to update each of the nine instances. Now all yellow ! are gone.