Hi Ernie- Happy New Year. I'm cleaning up some old e-mails. Try using the Spurious Map Line bugfix plugin and see if this fixes the problems you've had on your Windows systems. Use the Tools->Plugin Manager menu to bring up the plugin manager and then install the Bug Fixes->Spurious Map Line Fix plugin. Don Murray Unfortunately, there does not seem to be any difference between 2.7b2 and 2.7u1. in fact I now can see issues with simple 2d images (e.g. world outlines map), there are spurious straightlines that appear in the image. Monitors are 24" widescreen formats and I have tried 19" sqaures with little difference between them. I also just tried running on an R200 RHEL 5.3 box with the same 24" monitors and it looks fine, so it must be some kind of windows issue Ernie Ticket Details =================== Ticket ID: CDH-643541 Department: Support IDV Priority: Critical Status: Open