Just before I started to throw my toys out of the pram, I'd changed the Anisotropic Filtering setting, on my card, from 4 x to 16 x. This was after seeing a very screenshot, on Horizon Forum, from a 16 x display. Before I took off tFSX had sent me a phone home message. I've reverted to 4 x.
Any ideas folks, other than "if it ain't broke etc" ? Gerry Winskill