As you all probably know if you read this thread i had one of the first three carts. So i have been using it for a couple of weeks. I just wanted to clarify the situation on the XEX files that need extra RAM. I have a couple of 800XL's one has a Compy/Rambo 512K and the other has a Ultimate 1MB expansion's. So my experience is with machines that have a base 64K and not a 130XE. They both work with the AVG Cart without any problems loading Car's ( I was finally able to run the Bad Apple 1.0 Car ) or XEX's that are not over 64K. So i do not think it is a problem with my RAM expansions so hopefully when more users get these Carts it might help nail down the reason.