Hello,
I'm using a Creative USB MP3+ too.
First, you should unplug the card.
Second, you should uninstall Creative software.
Third, you should clean up Windows Registry with CCleaner (free) or Tuneup Utilities 2006 (full demo).
Then, please verify that the switch of the Creative card is on " DIGITAL / ANALOG " position.
Now, you can plug the USB card in.
Launch the CD and install "Sound Blaster" and "Creative MediaSource" drivers.
Reboot your laptop if you are asking to do it.
Least, but not last, download the last Creative drivers before using the sound card :
http://us.creative.com/support/downl...pe=1&x=31&y=17
Hope it will help !
Best regards from Normandy (not near Aldershot in England [JohnM ;-) ] but in France).