At first glance it it does to be appear to be an issue with Video Refresh to the Monitor. If I was near a better computer I'd give ya some steps on what to check for, but this bucket of bolts I'm currently using barely connects me to the site
If I get a chance later at a better machine to look up some troupleshooting steps I'll post bac - or maybe Zep will be running around here in about 2 hours with an idea