[Jedis]

Thanks .unicorn!! This is what the problem was! The default WinXP drivers are crap apparently.

Went to Promise's website and found an updated BIOS AND DRIVER for the card!

Code:

Ultra133 TX2

Name * * * * * *File * * * * * *Size * * Version * Platform Release Date 
Ultra TX Series Windows Drivers 147.64KB 2.00.0.42 WinXP * *2003/05/06 

Description
- Fixed burst data transfer rate performance issue
- Add support for Windows 2003 Server

I suspect the burst data transfer rate is exactly what the problem was. Thanks again!