Hmm I got 5770 ATI too, but my friend has Nvidia, but maybe hes having different issue.
CONFIRMING PEOPLE WITH NVIDIA CARD HAVING SAME ISSUE:
CRASH DATA:
Rendering thread exception:
Fatal error!
Address = 0xdd8787 (filename not found) [in c:\program files (x86)\steam\steamapps\common\redorchestra2beta\binaries\win32\rogame.exe]
Address = 0xb8ab6c (filename not found) [in c:\program files (x86)\steam\steamapps\common\redorchestra2beta\binaries\win32\rogame.exe]
Address = 0xc6b4e3 (filename not found) [in c:\program files (x86)\steam\steamapps\common\redorchestra2beta\binaries\win32\rogame.exe]
Address = 0x5d94fd (filename not found) [in c:\program files (x86)\steam\steamapps\common\redorchestra2beta\binaries\win32\rogame.exe]
Address = 0x5db33f (filename not found) [in c:\program files (x86)\steam\steamapps\common\redorchestra2beta\binaries\win32\rogame.exe]
Address = 0x4bc29a (filename not found) [in c:\program files (x86)\steam\steamapps\common\redorchestra2beta\binaries\win32\rogame.exe]
Address = 0x76ec9f02 (filename not found) [in C:\Windows\SysWOW64\ntdll.dll]
Address = 0x76ec9ed5 (filename not found) [in C:\Windows\SysWOW64\ntdll.dll]
Address = 0x76ec9ed5 (filename not found) [in C:\Windows\SysWOW64\ntdll.dll]