I would assume it is a vid card driver issue you are having maybe, upgrading that usually helped alot of games out in NT4, but some just plain would not run.
England can wait. When you take Russia you get it’s coin. That should give you whatever you need for England. Plus you’ll prolly win the game with an ipc victory (unless UK is about to march on Germany).
Unlimited IC? If you do that, then there is really no point in playing, the allies have an even bigger advantage. If you did, the British IC should go in Persia where no one can take it before they build. When I first started playing we didn’t read the rules carefully enough and played this way. The allies could win without the US.