Yup. I know it used to work, but now, nothing. I installed it and was using it for a while to get the outputs for Q*Bert figured out. Then I got off on other stuff, installed other apps, blah, blah. Decided the other day to actually hook up the knocker and it wasn't running. I uninstalled some of the apps I'd installed (TeamViewer, Linksys wireless adapter, AV) but it still just flashes. The MH logo appears in the taskbar, but as soon as you move the mouse over it it disappears. If I open Task Manager, I can see it start then immediately stop. I'm sure it is something I've installed, but I don't really have anything odd on here, just the usual stuff for a Mame PC. If I have too I'll take another PC of the same model (I've got another at work) and start installing apps from scratch until I find the culprit. I was just hoping there was a debug option, or maybe some supporting files I could check. I'm assuming something I installed updated a needed DLL and broke Mamehooker, which to me is more important than any of that other crap.