configuring X on HP server

Hello Everyone,

I have installed RedhatLinux7.1 on a HP Netserver LH2.

But the graphical dislay(K-desktop) shows only on half the monitor screen.
I have tried changing the monitor as well install a S3Trio pci vga card. But facing the same problem. It asks the clockchip which I have tried all combinations.

The graphics card is Trident TVGA 9001
Can somebody help me configuring X?

Thanx