Relax, first of course, make sure that you CAN unzip it - you have the program.
- okay, moving on just simply head for Windows (I assume you're using Windows) and click
"Windows Explorer",
Click
Program Files.
Click
Black Isle.
Click
BG2 - SoA
Find a file called
"override" and transfer all the unzipped contents into there.
You should find it works the next time you play.
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