Windows 7 - Windows Will Not Start Today

When I tried to start Win 7 RC today I could not get past the StartUp Screen. Yes I saw the post below with the exact same problem occurring today. What is going on?

My situation is a little different with the RC but not much.
I know its not the computer because I have a seperate detached hard drive with Win XP on it and it runs fine. When I manually switch over to the seperate Win 7 HD (as I've done many times in the past), no StartUp!

I tried hitting F8 to get into safemode but it will not take me there. It will allow me to try to boot from my RC DVD disk but that too stops at the startup screen. I've tried to do an Automatic Repair it but it can't . It won't fix because the OS is not listed in the fix menu that comes up, so it wants me to install some kind of system drivers or alternately compeletely reinstall win 7. I did get a message about disconnecting any plug-in drives that I may have added, but I did not add any. And, I removed all plugin drives in any event.

After numerous attempts I also saw one DHCP (or something like that) notation where I think the system may have been searching for my router/network card on startup, but my router/network works because I'm on this computer and router/network card right now writing this message from its seperate Win XP hard drive. Maybe it lost track of the network card driver that was installed by Win 7 on that hard drive ?? I think it may need this driver before Win 7 starts ?? When I tried to select the reinstall drivers selection from the Win 7 DVD, it took me to the System 32 Folder but I had no idea where to go from there. Any thoughts on where to find it??

It seem too fishy that someone elser ran across this same problem just today.

Maybe it's a good opportunity to consider installing the RTM/retail version (which with the 3, 30 days rearms) can be run until ~ Feb 2010 without activating. Just a thought.