Agree with original poster:

"The SC series game engine will not work for an American Civil War game but I would definitely have an interest if it uses a new or revised game engine. One of my suggestions since there won't be any stacking is that unit counters on the map can represent any number of ...

Thanks Guys for sorting this, Panzerkrieg has now installed - hopefully I can now hold the Russians at bay.

One small point, version number still reads 5.20

Ditto.

I tried everything including un-installing the whole Order of Battle, then re-installing but still Panzerkrieg will not install. In fact, I can't even re-install the Burma campaign that I had previously bought, hey ho.

Yes, have received fix, it works now. Thanks Eric and all for your prompt response.

Also having same issue whether cut and paste or typing. Hope it gets resolved soon as been looking forward to this game for ages.