I recently purchased Half-Life 2, Episodes 1 and 2, but can't run them
on my HP Pavilion Notebook PC. I can get the get the opening screen to
load up, but when I start the game, the screen goes funny, and then
everything crashes.

It warns me at the start that the video driver needs updating so I'm
assuming that's the problem. Unfortunately, I can't find a video
driver under which the game will work. I'm using a ATI Mobility Radeon
Xpress 200. I tried the ATI web site at http://ati.amd.com/support/driver.html
, but there's no exact match there (I did try a general Catalyst
driver there). I also tried downloading the Omega driver at
http://www.omegadrivers.net/ati_winxp.php , as well as the 2006
release at the HP web site, at
http://h10025.www1.hp.com/ewfrf/wc/genericSoftwareDownloadIndex?lc=en&cc=us&soft
wareitem=ob-38902-1
. None work.

When the progam crashes it says "Internal driver error in IDirect3D
Device 9:: Present()". Googling this error message led me to try
reinstalling the latest version of DirectX, but that doesn't help.
I've also turned off all firewalls and antivirus software, and that
doesn't help either.

Does anyone have any suggestions for other places to look for a video
card driver, or other fixes to try? It's a little frustrating to pay
$30 for a game and not be able to play it.