it is not a polybius cabinet, just a regular mame.
I thought i needed it to convert the signal to pal.
anyway i installed soft 15khz hooked it all up still just a grey scrolling screen, the white scrolling lines are gone but still no picture, the problem is i have no idea what resolution my tv is, it is a big Loewe calida, one of those letterbox types i think it is 5:4
could it be that i don't even need that dongle? i just read that it is to make new video cards work with soft15khz, or am i wrong?
so many questions, ontop of that i locked myself out since my pc screen is not working with 15khz and you cannot uninstall 15khz in safe mode since it uses the windows driver in safe mode.
Deleting all the reg keys manualy did not work either, uninstalling the drivers did work, then windows 7 started installing the drivers automaticaly again lucky for me not the same ones otherwise i was locked out by 15khz again.
and i just figured out i cannot connect one screens to the onboard and one on the pci card, disconnecting a screen and attaching again is not working without a restart.