Logitech Channel Mix Up PROBLEM

I have bought the Logitec X540 from Futureshop 2 yrs ago. It worked fine outa the box. It worked fine for 2 years, until yesterday. I installed a scanner and a colour laser printer, and had to rearranage everything ( cables, peripheral positions, etc). I unplugged all the cables, moved the machines, and plugged everything back in. I turn on my computer and everything but the audio was fine. I tried looking at the colours, seeing if I plugged the right cable into the right channel. ( I did ) I tried rearranging how i plugged in the cables. (did not work) The rear left and rear right played sounds that the front left and front right speakers are suppose to play. ( BTW I have a Creative Sound Blaster Extreme Music Sound Card, and that I uninstalled the drivers and reinstalled the drivers ; ran the diagnostics n everything was a-okay) In my diagnostics I clicked on the front right speaker symbol, and instead of the front right speaker playing, my rear right speaker played, same goes for my front left speaker. The center and front left and front right dont play when they are suppose to ( I click on rear left and rear right and center symbols, and instead of those speakers playing sounds, they dont)

RECAP:

Rear right and left physical speakers playing what front right and left speakers are suppose to
Front right and left and center are not playing ne thing
Rear right and left speaker symbol, when clicked on, produced no sounds from REar right and left physical speakers
Subwoofer Works

I have Win XP SP3