Thanks for responding. I've actually installed the latest 2010 version and it seems to have solved the problem. However, I now have a different issue which is that MediaLab won't call up the DirectRT file. I browsed through the forums and found this:

"From the Windows Start menu, type "regedit" and navigate to the following registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Curr entVersion\App Paths\directrt.exe

AND

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Curr entVersion\App Paths\executeDRT.exe

In both cases, there needs to be a string variable called "Path" and the value needs to be "C:\DirectRT\" or wherever the folder is located that holds the directrt.exe and executedrt.exe files.

Note the key needs to be named "Path". If there is no such key you may need to create it. Just right click and select "New > String Value". Name it "Path" and assign the "C:\DirectRT\" value to it." However, when I go into the app paths registry, the directrt.exe is not there, only the executeDRT.exe is there. I suspect this is causing the problem, but I'm not sure how I would go about fixing it.

Thanks again...