12 months ago, I installed FMS version 2.0 Alpha 8.3 from a disk supplied with the E-Sky contoller.
Everything has worked well - until last week.
The models have started running extremely slowly and jerkily, and the graphics are poor.
I removed FMS from my PC, reloaded the disk - and found that not only does FMS still run slowly, but now the tree in World.scn is nothing but a solid black square containing the outline of the tree.
The same thing happens when I download version 2.0 Alpha 8.5 from the FMS website. Slow, jerky flying, and a black square instead of the tree in world.scn.
I am running Windows XP on a home PC.
Other graphics programs continue to run OK.
Please can anyone help me restore my FMS to its former satisfactory state?