Downloaded the BGII demo, just to see if I could run the game. Turns out that the configuration utlility shows up like this:
As you can see, the window is too small for the info contained. So not only can I not select the options to make it run optimally, I can't get the game to run at all, because the wrong options are default. I can't resize the thing (not even through right-click->maximize), nor can I tab through the different areas, nor can I highlight and drag to get the rest of the window to show. Any ideas?
UPDATE: This the non-enhanced original version of the game from 2000.
Best Answer
Since it got answered in comments, I thought I'd post what the comment said in an answer.
This problem was due to the DPI settings of the user, in Display Settings > Resolution > Make text smaller or larger. The OP had his text settings set to 150% so normal text was bigger. After he set it to 100%, it was fixed.