Yamaha DTXpress/DTXplorer/DTXtreme

Does anyone know what the problem is? (read below)
What if i decide to do a system reset, will that solve the problem?
How do I do a system reset on the DTXpress 1?

Regards,
Mike 


--- In DTXpress@yahoogroups.com, "Michael Y." wrote:
> Hi guys,
> 
> Usually when I practice, I use the preprogrammed songs on my 
> DTXPRESS 1 module.  I mute the original drum part and I play my own 
> beat to the music.  The sound is perfect while the music is off.  
> 
> Now here is my problem, when I press play on the module, the drums 
> sound a bit muffled (less echo) than if there was no music 
playing.  
> In order to get rid of the "muffle" i need to advance to a 
different 
> drumset, while the background music is playing, then go back to the 
> one that I was using.  While this solves the problem, it gets quite 
> annoying going back and forth all the time.  Is there a way that I 
> can make my drums sound like how they are whether the music comes 
on 
> or not?
> 
> Regards,
> Mike