Whenever I play BF2, I've noticed that it seems my right speaker is louder than my left speaker, I've checked all my computer based settings that i know of that would help, but everything is perfectly balanced.

This only happens when playing BF2, the sound is perfectly fine when i listen to music, watch stuff on youtube, etc.

Any help would be appreciated.

You said the sound was fine with other thinga except bf2, so this can fix it.
1. open my documents (documents in vista)
2. Open the folder "Battlefield 2"
3. Open the folder profiles
4. Start with 001, and open profile.con. If the text after LocalProfile.setGamespyNick is your bf2 online acount then go to step 5, if not open the folder 002. Continue until you find your profile.
5. Delete the file audio.con in the folder you found the right profile.con.

It worked, thanks