After installing Windows 7 beta, I had a blank screen with the windows 7 build number and "for testing purposes only" text in right hand corner. The installed went no further.
The problem is apparently due to not having the right video driver. Here is the summary of the solution after looking over several forums.
1. Restart you computer.
2. At the boot screen hit F8
3. Select "Enable low resolution video (640 X 480)"
4. Windows 7 will then start and complete the install.
5. Then follow with a Windows Update to get the right video driver and restart your computer (if needed).
The problem is apparently due to not having the right video driver. Here is the summary of the solution after looking over several forums.
1. Restart you computer.
2. At the boot screen hit F8
3. Select "Enable low resolution video (640 X 480)"
4. Windows 7 will then start and complete the install.
5. Then follow with a Windows Update to get the right video driver and restart your computer (if needed).