What OS are you using? On Vista and Win 7 machines users have reported flickering in Sub Command. Some say it helps running SC in windowed mode, so it might be worth giving this a try. Hope you get it sorted.
Nemo
__________________
"I'm afraid there is no disguising the fact that King's obsession with the Pacific and the Battle of Washington cost us dear in the Battle of the Atlantic".
Sir John Slessor GCB, DSO, MC, DL
AOC-in-C Coastal Command RAF
___________________________________________
|