Display With Horizontal White Bars

[Larry Stehno]

This is an All-In-One PC so there are no external video cable connections.  This same problem shows up on two different PCs of the same model so it is unlikely to be a connection problem and is an inherent system problem with this model.  What about the video driver? How do I either roll it back to an earlier version or find one developed for Linux?  Thanks,
Planorez