Error at Launch

[justachap]

I keep getting this error when i launch the game, I reinstalled the game before but that didn't help.

Build RedOrchestra_Build_[2005-11-27_10.48]

OS: Windows XP 5.1 (Build: 2600)
CPU: GenuineIntel PentiumPro-class processor @ 2936 MHz with 2047MB RAM
Video: ATI Radeon HD 4300/4500 Series (7200)

Error setting display mode: CreateDevice failed (D3DERR_INVALIDCALL). Please delete your RedOrchestra.ini file if this error prevents you from starting the game.

History: UD3D9RenderDevice::UnSetRes <- CreateDevice <- UD3D9RenderDevice::SetRes <- UWindowsViewport::TryRenderDevice <- UWindowsViewport::OpenWindow <- UGameEngine::Init <- InitEngine <- FMallocWindows::Free <- FMallocWindows::Free

[ChuckN0rr1st]

probably your screen resolution is higher than your screen can support. this sometimes happens to me in other games too.
open the redorchestra.ini with editor (placed in "...\SteamApps\common\red orchestra\System")
and go to the section [WinDrv.WindowsClient]
directly below that u must see the lines
WindowedViewportX=XXXX
WindowedViewportY=XXXX
instead of "XXXX" u must now see the screen resolution. try to change the settings into:
WindowedViewportX=1024
WindowedViewportY=768
save the .ini file and try to start the game again. if this doesnt work delete the "redorchestra.ini" and start again. the game will automatically recreate the .ini file with reseted graphic settings. now you can again try to config your graphics