problems with ArcadeVGA only working sometimes

[thetered]

I have an arcadeVGA, older version, that will sometimes if the moon is just right work when I turn on the computer.

Otherwise the computer fires up and loads and everything, but nothing on monitor, I'll try swaping back and forth between composite out and everyonce in a while it will boot. 

Has anyone else experienced this, I'm going crazy messing with it and begging it to display an image.  I can have it on and working, turn the pc off and turn it right back on and still have no picture, not changing anything or messing with anything.