I can't seem to get GS3 to capture cleanly at 88.2k or 96k and I always thought it was just me. Or my fw1884 drivers. But I just saw another report of a similar problem from 2 other folks over on Sonic Solutions. Anyone else encountering this?
If you have an interface that can do 96k, you can test it by raising the rate in GS3 (you may need to do the same manually in your audio card's configuration screens too). If you can play a few notes in GS3 with the keyboard or mouse and they sound ok, try and capture them to a wav file. Then pull the wav file up in an editor or something and see if it sounds the same when you play the file.