I've tried this, and it doesn't seem to work for me, either at 1080p on my monitor or at 720p on my TV in the living room. (I know, lower resolution, but 50" makes up for a multitude of sins!

) On the monitor I can play at 1680x1050, but it just doesn't look right. Haven't tried that yet on the TV.
I keep getting this error when I manually set the resolution:
Error Message said:
Build RedOrchestra_Build_[2005-11-27_10.48]
OS: Windows NT 6.0 (Build: 6002)
CPU: AuthenticAMD Unknown processor @ 2875 MHz with 4095MB RAM
Video: ATI Radeon HD 4800 Series (6091)
Error setting display mode: CreateDevice failed (80004005). 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::Realloc <- ADA10000 0 FArray <- FArray::Realloc <- 0*2 <- FMallocWindows::Free <- FMallocWindows::Free
Now, obviously when I delete my .INI file, I go back to the basic available settings. Any recommendations?
(my system:
Phenom 9850 OC'd to 2875
3x2048 of DDR2-800 (waiting for an RMA on my 4th stick)
2x Radeon HD 4870 512 in CF
Vista Ultimate x64)