First off thanks for the replies
Ok first question; yes all skins, i have uninstalled every skin and still get the same problem. Now using the 'default' scheme and its still happening. Starting the game with DCS Max..same result.
As regards my specs, i am at work atm but roughly;
Vista32, Intel Dual Core E5200, 3GB DDR2, 320GB HD and G-Force 9800GT.
Saitek X52Pro and Track IR 4 on a 24" Monitor