I have an Sound Blast Audigy 2 card that came with my Dell Dim 4600. Up until just recently I have had more volume than I can use. I mean it would make my Bass Box rumble. The volume is now about 50% or less of what it used to be at full volume setting. I have checked the Device Manager, Drivers etc and all seem to be working fine, which they would be because I can still hear all music, sounds, audio of any kind. I have checked all volume controls on my XP machine and applications until I am blue in the face. Having said that I have recently installed and been using Vegas Movie Studio and updated some video codec and drivers for my SB card. I guessed that it could only help... wrong. I cannot seem to Roll Back the Drivers now to reset them. I also tried reinstalling the original drivers from the Disc that came with the computer. It didn't increase the volume. I also installed new ram but I can't see that making a difference. The sound is good quality and uses all 4 speakers but it is just annoying that I cannot crank it up when I want to hear the Matrix sound track at ear bleeding volumes like I used to. Any one have any ideas. P.S. I didn't know if this was Hard or Soft Ware.