Hmm. I have an XP2 with a GeForce 6600 card, driver version 9.1.4.7. Oh, my monitor is a Seanix slim.
I find that my night scenes are slightly too dark. Should I dare try your enhancer on my nvidia card?
I had an terrible time getting SH3 to run on my machine, until the computer technician updated it with the proper driver. (I had installed the wrong update drive)
Rob
Edit: I just took some snaps of my night attack during 15 m/s winds heavy fog and rain. You can't see a thing. I'll see if I can upload them to Image shack and put in a link to them. First one is Oct 3 - 43 0459 at 100 m, second is surfacing at 0547, third is running course 090° at 0600 and last is during the atttack, what I saw through my periscope. (Hope I can get them all in.