Graphic problem pls help :(

[ali825]

Hi ya guys
I need help with two of my game; they are serious Sam hd and Tropic 3
Basic the graphic are glitching bad, on serious Sam hd the graphics only work ok when I look to the floor or the sky which is no good in a fps., and tropic 3 does not work at all

The games do work in there menus, it just the in game play

My operating system is windows vista 64bit
The driver I am using are catalyst 10.1

Here are some screen shots

Thx so much for your help inadvance

 

[Mr.Nick]

What is your graphics card?

 

[ali825]

HIS ATI Radeon HD 4850 512MB GDDR3 TV-Out/Dual DVI/HDMI (PCI-Express) - Retail (H485F512P)

any idea anyone

 

[West]

Have you got Adequate cooling/ventilation, need specifics.. check your temps using MSI Afterburner and a CPU Temp program