I just picked up an iPAQ 4155 and I really like it. I downloaded MegaMame C3 Ver 9.50 and the install seems to have gone fine. However, i did want to install and overwrite a file I had(don't recall the name) and I elected to keep the existing file. The program seems to open up fine. When I click on "Show all games", I get a huge list of them(many of which I have never heard of). I am guessing that these games are NOT in the app, since when I click on any one of them, the scrren goes black, and about 20 seconds later, the Mame CE app appears again. I am wondering if anyone can direct me on how to activate these games, and if they are not installed, where I might be able to find some on the net. I'm a child of the 80's and am looking for some payback with Sinistar, Defender and the like!