Hi Group. On my 515 when trying to load a game, BookWorm, I get the following : This game requires more free heap memory than your handheld has available. If you have any hacks installed, or open network connection, please disable them. 1. What's a hack? I don't think I have any. Nor do I have an open network connection. 2. I went from a 130 to the 515 because it had more memory-- and now this! I currently have 5.1 M of Free Space available. Isn't this enough? Book Worm takes 355K, which I have on the 32 MB Expansion card, which also has 18.7M of free space. 3. So what's heap memory? Different from regular memory? Thanks in advance!