I had the same problem with a -25% magic resistance tacked on me by who knows what. There might be some things you can try:
1) Use Shadowkeeper (
www.mud-masters.com/ ) and select a save game. Go to the Affects tab for your monk and if it shows the blindness affect, just delete that line.
2)Have you tried the cleric HEAL spell or any type of cure/dispel magic spell?
3)I've not heard of that Baldurdash fix before, but to install, if it asks you to select a BG2 override folder then just follow this instruction: Right click on My Computer, select Explore, select Hard Drive, select Program Files, select Black Isle, select BG2 SOA, and select Override. Then click on OK to extract the override files.
[ 03-05-2002: Message edited by: Kaneida ]