To be honest, I turned off the edge screen scrolling and I use the arrow keys instead to turn the camera. Less efficient but copeable with. I use the right-mouse button to change the camera angle. This can be nice as I can get right down to ground level at times and the view from there can be great.
Someone did give me instructions to change the ini file to tone down the camera responses. You are not alone in finding the camera operation difficult. I never did follow these instructions so can't tell you if they work but you're welcome if they help. I found a way to work with the camera and left it at that. Needless to say, please back up any files you alter BEFORE you start fiddling.
Patch 1.10 and MotB
Camera Edge Scrolling Settings for mouse:
In Character Mode:
Check: Turn Camera on hitting edge of screen is on
In Strategy Mode:
Control:
Check: Turn Camera on hitting edge of screen is on
Check: Scroll Camera on hitting edge of screen is on
Camera Focus:
Check: Directly on controlled character is on. This one is bold
because it seems to be the one detail folks seem to miss.
Note: After making the changes, switch back and forth between
Strategy Mode and Character Mode using the * key on the numeric
keypad to make sure your settings were saved.
Camera Speed Settings:
I did a little testing on my own game and made some changes that give
me better speed control over the screen edge scrolling and mousewheel
zoom speeds, which worked well for my system.
Find your nwn2player.ini file in your My Documents\Neverwinter Nights
2 folder.
Make a backup first!
Make a backup of your nwn2player.ini file and store it in a safe
place (simply copy it to another folder). Then, In your
nwn2player.ini file, make the following changes:
Under Character Mode Options
Change
Edge_Turn_Min=3.000000
to
Edge_Turn_Min=1.000000
Under Strategy Mode Options:
Change
Mousewheel_Speed_Min=11.000000
To
Mousewheel_Speed_Min=1.000000
Change
Edge_Turn_Min=3.000000
To
Edge_Turn_Min=1.000000
Once you make those changes, save the file and try it. You will
likely have to go into Options menu and re-adjust your speeds. I hope
this helps.
Also see Camera Help at
NWN2Wiki, the Neverwinter Nights 2 wiki