Hi, tks for your reply. Informations about my PC: Windows 7, 32 bits, 4 GB RAM, Iintel Core 2 Quad CPU Q8300@2,50 GHz, Intel 633/631 Express Clipset Family. I use generic mouse.
Additional problem: I'm unable to composse chat messages, popup window appears also as blank white screen.
My problem seems to be identical to the one reported at http: //flightgear-bugs.googlecode.com/
See screenshots:
Best regards, alexalbq