[nater1217]

I recently purchased an Indigo2 with ZX graphics. This is my first SGI system. I'm trying to get a good video output, but my monitor has vertical lines through the image. I noticed that the mouse cursor is on top of the lines and isn't affected. Does this mean that the graphics board is bad, or other hardware problems? I already tried reseating it, though I have not tried reseating the RAM or splitting the graphics boards and reseating that connection. Any suggestions? 

Pictures are here: https://imgur.com/a/giXRX99