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ATI HD4850 Graphics Rendering Issue

Last response: in Graphics & Displays
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September 13, 2008 7:17:10 PM

I bought a Sapphire ATI HD4850 a month ago and it was runs fine on games like Oblivion and Gears of War. A week ago, I installed Supreme Commander: FA. The game loaded fine and was okay until I started a skirmish game. After the loading screen, there was excessive flashing and screen tearing into random sized polygons which made the game unplayable. (The in-game user interface, audio and FPS were not affected)

This happened again in SPORE after I exited the cell stage and evolved to the land creature stage. The game was fine up until then (Game audio, creature creation, menu screens and user interface).

I've already played a bit with the in-game settings and CCC settings, with no improvement or elimination of the problem.
Does anyone else also have this problem?

I'm currently using a Intel E8400 3.00GHZ

4GB of RAM with a 600w PSU

I checked on the system temps and there seems to be no signs of overheating.

Here are a few screens, the first being from Supreme Commander and the second and third from SPORE.





a b U Graphics card
September 13, 2008 7:49:38 PM

you have newest 8.8 drivers?

go to catalys control center and under preferences click Restore Factory Defaults. It helped me when I had problems with cod4.
September 13, 2008 8:07:35 PM

update your drivers, if that doesnt work try your video card in a friend computer with the same game and see, if the problem persists just RMA your video card, it could be damage. or restore to factory defalults, also it could be that the game is bad.
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September 14, 2008 1:54:07 AM

Sorry, I failed to mention in the first post (already a lot of content in one single post).
I've already tried updating to the latest catalyst and resetting to factory defaults. The games are OK since they run fine on the older computer,which I will test the card on. Thanks for the pointer.

Anyone else with a similar problem or solution, please share. I've been told many times that its a driver issue so I want to know if others out there have this sort of problem.
June 13, 2010 4:31:51 PM

Thank you Winley!

I have two ATI 4870s in Crossfire and Supreme Commander 2 was totally unplayable due to unexplained flashing polygons.

I had just about given up on playing the game, but I couldn't just let it die so I kept searching the internets until I found this post.

Restore Factory Defaults!

Yes! Yes! Yes! You fixed my game!!!1!!one!1!!
Anonymous
a b U Graphics card
July 3, 2010 9:38:00 PM

Thanks for the advice folks!
I've got a ATI 4870 and was getting the same issue with the 'flashing polygons'.
Restoring to factory defaults has solved the problem.
Like the above contributers I'd just about given up on the game
!