blisco,
Under "Options | Preferences" and then "MIDI Driver", make sure that you have "Microsoft GS Wavetable" selected (#1 on the image below).
Does that help?
What version of BIAB are you using?
Also, can you take a screen shot of your "MIDI Driver" and then post it on the forum so that we can see it? It will help.
To save a screen capture...
1. Open "Options | Preferences | MIDI Driver".
2. Press "Print Screen" to copy the screen capture to the clipboard.
3. Open "Paint" (it comes with Windows).
4. Use CTRL+V to paste the image on clipboard into Paint.
5. Save the image as a jpg file.
6. Go to the below link and follow the instructions on how to post images in the forum.
http://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=386690#Post386690Regards,
Noel