Edit: I've somehow managed to sort of fix the problem.
But, whenever it loads a new area, the screen turns black for a few minutes before the area is loaded.
No loading screen or whatsoever.

Ever since this morning, this has suddenly started occuring - on every savefile I get a black screen yet subtitles and the compass(?) are still visible.
I don't think this has anything to do with my graphics card, because the game itself recommends to run it on high quality. But then again, I'm not sure.
I last saved inside the Atomic Wrangler and... that's basically everything I can add.
I don't recall doing anything different from yesterday.

Can anyone help... please?

You're giving me nothing to go on, really.

Basic Hardware Specification Chart (Empty so far)

Processor Manufacturer: AMD / Intel
Processor Name / Type: Athlon 64 / Pentium / C2D / Phnom / dual core / quad, etc.
Processor Speed: ?.? Ghz (or AMD Performance Number)
Operating System / Service Pack: WindowsXP with SP #?, Win7, Vista ? (Oh, no!)
System RAM: ? ? GBs (MBs, if less than 1024 ? )
Video (GPU) Manufacturer: ATI / Nvidia (only those two are supported, PERIOD, so please answer which of them you have)
Video Card Model: (examples) Radeon HD 6870 / Geforce GTS 450
Video Card Driver Version: Catalyst ?.? / Nforce ??.??
. . (please use the numbers, not the word "latest")
Video Card onboard RAM: ? ? ? MBs
Sound Card Manufacturer:
Sound Card Model:

(And this is only for the raw hardware & driver variations. Potential software conflicts are far more likely to be game play problems, and developers cannot test for all possible program loads.)

P. S. Please use every day business style paragraph breaks, punctuation, and spelling.