That works. Thank you :)

I have been using Plan-G for several weeks without any problems and have come to really like it. However, in the last few days, the pop-up tool-tip type boxes are appearing blank when I mouse over an airport or other ground object. Also the right click menus either do not show or only show in part. I removed a couple of FS traffic add-ons that I had recently installed, I made sure that Netframework was up to date and installed the latest video drivers, I then reinstalled Plan-G. I started Plan-G and rebuilt the database and it ran just fine, and it does run fine until I start up FSX, went the pop-ups turn blank again. It does this even if it is not connected to FSX. Exit FSX and it all works just fine again.

Suggestions please ...