Well I've finally got a decent enough machine and graphics to test this baby out!!
However, upon loading and being presented with the title screen, there are no menu options visible until I cross over them, after which they appear for a split second then disappear!
The only thing that does display is yes/no options!!
When I did get into the start of the mission, some of the land was not being displayed.Some of it was completely 'BLOCKY'.
I have a 1 ghz AMD Athlon,windows XP (sp2),384 mb memory,Geforce MX/MX 400 with 64mb Ram,DX 9.0c
All the best