Since this seems to come up a fair amount, I decided to make a sticky.
[url="http://www.shsforums.net/index.php?showtopic=30840"]This thread[/url] contains a lot of solutions on how to deal with newer NVIDIA cards and Infinity Engines games.
Also, feel free to contribute to this particular thread. Hopefully it will be of some help.
Spoiler
testingtest12
Do not meddle in the affairs of dragons, for you are crunchy and taste good with ketchup. Spoiler
testingtest12
.......All those moments ... will be lost ... in time ... like tears in rain.
I just dug up another [url="http://www.gamebanshee.com/forums/icewind-dale-ii-31/help-plz-graphical-problem-92023.html"]thread[/url] that deals with the issue... since I decided to give IWD2 another chance and was experiencing the blocky, and forever advancing fog-of-war problem myself.
I ended up disabling hardware acceleration:
Start > Control Panel > Display > Settings > Advanced > Troubleshoot
Worked like a charm!
Spoiler
testingtest12
Do not meddle in the affairs of dragons, for you are crunchy and taste good with ketchup. Spoiler
testingtest12
.......All those moments ... will be lost ... in time ... like tears in rain.
Wait...my game freezes/crashes at the same point in IWD2, and I cannot progress any further because of it. <*Possible Spoiler*>It's the point in time where you must talk to Oswaldto begin Chapter 2, after you return from the Goblin Fortress where you save the two scouts from Targos.<*Possible Spoiler*> Could that be a problem with the game itself, or a problem with my computer/graphics card? I have tried looking it up, but I have not read about anyone experiencing a similar problem. I posted a thread about my question (which you can view [url='http://www.gamebanshee.com/forums/threads/icewind-dale-ii-keeps-freezing-please-help-me.126766/#post-1110985']here[/url]), along with other problems I have experienced. I have never had such problems with BG1 or 2, and my Dad never told me about any problems that he had with the games, but its been a long time since he's played them. I hope I can get some help so that I can finish the game!