Hey Calamity, another day another problem!
I think I'm close to giving up.
I hooked up my groovymame pc to my arcade crt tonight. Groovymame kept hanging or if I was on Windies desktop it flashed for a second.
This kept happening regularly , every 20 seconds at least
When on desktop I got a Windows error every time the screen flashed and I presume it I'd also the cause of groovymame hanging.
AMD display driver stopped responding and has recovered.
Any pointers on where to begin to resolving?