Problem with AGP video card on MSI 845G Max

[Twinhead]

I just bought a new MSI 84G Max mobo and P4 1.6A proc.

Intel 845G chipset has built-in VGA support, so there is a VGA port substitutes the COM2 port.

My problem is, when I use my Radeon 64MB DDR VIVO video card, the screen doesn't show right. Color looks funny on the screen, sometimes can't even boot into Windows XP.
But when I switched to use the internal VGA, everything is fine. I've tried to change some of the BIOS setting but it still doesn't work when using my Radeon.
The mobo manual says that the AGP slot only accept 4X 1.5V video card, not 3.3V. I tried to look for technical spec for my Radeon but couldn't find one, not even on ATI website.

I am wondering what's up with this? The internal video just doesn't look good for me. Anyone has something to say?
Any comment will be appreciated. Thanks.

 

[mechBgon]

Hmm, the manual doesn't show any adjustments for Fast Writes, which is something that gave me a similar symptom once. Got any other AGP video cards you could try?

 

[xgsound]

I have a MSI 845g also with winxp, 1.6A @2.3, radeon 8500LE agp. If using xp it is important to do a FRESH install if at all possible when changing video cards, otherwise you have to find and remove all the driver remnants that xp hids from you. Also immediatly after the fresh install is the only time to add the Intel inf to properly drive the agp slot (see other 845g threads if you are going to overclock ) . If colors were off, the first thing I would try is drivers for the card.
www.rage3d.com is the place to see what drivers they're using now for your card.

xgsound