The Doom 1 & 2 versions comming with the BFG edition seem to have no lighting at all or is that just me?

As in .. all rooms in all levels seem to run at default brightness. There are certain static, flickering lights but all the dynamic lighting seems to be disabled.

Some rooms are supposed to go dark whn you use certain buttons/levers. And other start out dark and get bright later (or never).

It just flatout doesn't work.

Anyone know a fix? Otherwise might aswell throw the wads in my doxbox version. -.-