I'm guessing this needs to be done by running the multiple DirectRT input files from MediaLab? Is this the only way? I have MediaLab and can do this but would prefer to avoid any potential glitches that might arise from jumping in and out of a DirectX environment or in and out of whatever display setting you've established in the DirectRT style file. I'll give it a try. Assume there were no problems if this is the last you hear from me on it.