Have you tried installing the manufacturer's driver posted on their site for the monitor? If you are using the driver shipped with it or using the Windows Update driver...... sometimes those are the issue. Can't say I have ever seen this though.
@Skit: I had a similar thought previous to posting this, and did update the proper driver for the monitor we were using from the manufacturer's website. It didn't solve the issue, and the issue persisted over multiple monitors that we've tested in addition to the stock one that we use. Thanks for the suggestion though, I know it's a strange one.