Have you bought the program? If your playing TR then there shouldn't be a logo at the beginning but it will show up later on. For unsupported games the logo will always be there if you haven't paid for it.

The first two levels are supposed to be logo free even for unregistered users, but at the moment owners of the very Original TR CD will have the logo from the beginning. All should be well for the Gold version and the Unfinished-Business version.

If I could get a copy of the original TR CD, I could fix that too.