Ok im a newbie,just built a 4-player cabinet over the summer. All connections made via Ipac-4. I have read other issues with people having trouble with their trackball. Trackball operates in windows find with mouse clicks/selections. After running gameex, mouse pointer displays but I can't make any selections with it within gameex. This would eliminate navigating with key board, besides who wants that. I've tried the following: 1. adding -mouse to command line in mame options 2. added mouse = 1 in mame.ini file I;m not sure what im overlooking but this is starting to be frustrating . Any help would be greatly appreciated .