First, great work! I usually don't take the time to donate, PinballX works so much better on my system than HP that I had to throw you some money.. Even if it was just a little. I was wondering how difficult it would be for you to allow for multiple versions of VP or FP without adding them as seperate systems? It would allow us to have different executables in different folders for say.... VP 9.15 or 9.16. Or different FP physics versions. You could set which version you wanted the game manager to use as a default, but manually point it to a different version for specific tables, on a table-by-table basis.