Is it an incompatibility problem?

[appforce]

I got a Hauppauge WinTV GO-Plus as a tv tuner several days ago. However, it doesnt work after I installed it. It actually can get the channels while I used WinTV2K to scan channels. But it seems it didn't get the signal (black screen and no sound all the time). But I installed it to my old computer and it works perfectly. I just wonder whether it is an incompatibility problem between ATI card and this tv tuner.

The specification of my computer (the tv tuner doesn't work after I installed it in this computer) is as follows:
CPU: Intel E6400
Motherboard: Gigabyte GA-965P-DS3
Memory: G.SKILL (1GBx2) PC2 6400
Video Card: SAPPHIRE 100154 Radeon X1800XT 256MB GDDR3 PCI Express x16 CrossFire Video Card

The specification of my "old" computer (the tv tuner works after I installed it in this computer) is as follows:
CPU: Intel P4 2.8
Motherboard: ASUS P4B800S
Memory: GeIL Value (512MBX2) DDR 400 (PC 3200)
Video Card: Nvidia Geforce FX5900

Does anyone have the similar experience before, or know how to address this problem? Thank you very much!

 

[Marvelous]

check PCI specifications of your winTV is compatible with your new board...

 

[appforce]

Oh! Thanks!
But I didnt find out the list in the WinTV specification.