RE errors such as "no compatible resolution" "can't determine refresh rate" "no compatible color depth" "color buffer" and such.. It turns out it can be a very important issue as to whether or not your system can detect that Windows DirectX has been properly installed. This applies to most ALL versions of DirectRT because they DEPEND tremendously on the proper installation and operation of Windows DirectX. Fortunately there is a way you can tell if your system is setup to go. Try creating a dxdiag.txt file and see if anything looks like this (below) in the "display properties":
Video Accel:
Display Memory: n/a
DDraw Status: Not Available
D3D Status: Not Available
AGP Status: Not Available
If so, then DirectRT is extremely unlikely to run. If this is the case, then take a look here:
http://www.empirisoft.com/Support/showthread.php?t=5697
http://www.empirisoft.com/Support/showthread.php?t=550
Note: If you want to try running a system diagnostics test like this, here is how you do it: Type "dxdiag" from the "Run" command on the Windows "Start" menu. You will get a complete diagnostic description of your system. If you then click "Save All Information" you can save it as a text file and view it in notepad or wordpad etc. Scroll down to the "Display Properties" area to check out values mentioned above.