PCDJ software - Using with PCDJ software in Vista - Bleeding issue

Q:  I've connected the AA_SRM to my new HP laptop running Windows Vista.  I'm 
    using it in conjunction with PCDJ - DEX which is the latest version of 
    their DJ software.  The PCDJ software uses two virtual CD players which 
    I've configured so that the output of one player uses channel 1&2 
    (front L/R) and the other player uses channel 3&4 (rear L/R). The SRM is
    configured for a 4 speaker output. 

    The problem is that I'm getting a bleed through of bass from the rear 
    channel to the front. 

 
A:  - First set the speakers to 5.1 
    - Uncheck the "Multichannel to Subwoofer" box
    - Set it back to 4 speakers.  
    - When you're in 4 speaker mode, the little green light indicator for 
      multichannel to sub at the left does not light up regardless of the 
      setting in 5.1 mode. It's still transferring bass to the front speakers
      when that box is checked.  
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