Hmm, it certainly looks like a bug What airfield/area were you near ?. Personally it reminds me of the borg cube from star trek, maybe they've come to get gliders... You will be assimilated, resistance is futile
TimKuijpers wrote: I think this is just a graphic card problem on his pc. It looks like it is the sun.
Yes it certainly looks like the sun; have you done any recent updating to your graphic drivers recently ?. People always say to update drivers but in some cases older drivers run better. When I get chance I'll fly around the area to see if I notice it.