Cannot start 5200 games on AtariXlbox emulator

[infidelity]

I finally got the 5200 games to start up. I'm totally confused on this situation I have now. I cannot play any of the games. I can't press start. I press it, nothing happens. Everything in the configuration is set correctly. This is the only emu that has ever given me a problem with trying to press start. I can access the right n left analog menus, can take screenshots, everything. I even remapped the start button to "A" I still get nothing. If it's a special configuration that I'm not aware of, please let me know. This is so frustrating. Thanks again for your time guys!!!