Hello,
Before going any further, please go to the following hyperlink http://www.microsoft.com/windows/compatibility/ to check both the raid hardware device and driver are compatible with Windows vista OS.
The problem can be caused by corruption of some system files. Since you are unable to get into the system in either safe mode or normal mode, you might perform the following steps to delete or rename those files.
1. Put the Windows Vista installation disc in the disc drive, and then start the computer.
2. Press a key when the message indicating "Press any key to boot from CD or DVD …" appears.
3. Select a language, a time, a currency, and a keyboard or another input method, and then click Next.
4. Click Repair your computer.
5. (Click the operating system that you want to repair), and then click Next.
6. In the System Recovery Options dialog box, click Command Prompt.
7. Navigate to c:\windows\system32\drivers\ and rename pcmcia.sys to pcmcia.old
8. Navigate to: c:\windows\system32\driverstore\filerepository\ and rename pcmcia.inf_xxxxxxxx to pcmcia.inf_xxxxxxxxold
9. Type "chkdsk /F C:" (without quotation marks) and click Enter.
10. Restart the computer and have a test.
Hope it works!