Yamaha DTXpress/DTXplorer/DTXtreme

Hi I'm fairly new to the Yamaha DTXPRESS III area.  If any one can, 
please see if you can answer a question about a problem I've just 
started having with my PCY-65S wedge stereo cymbal.  First of all, 
the set is only about 10 days old, yesterday when I was just playing 
one of the pre-programmed drumkits, like the accoustic drumkit for 
example, after about 45 minutes of playing it when I hit the edge of 
the PCY-65S cymbal it started to make a swish sound with an abrupt 
stop instead of the typical nice crashhhhhhhhhhhhh hissing sound it 
always made before.  Now when I play it I notice it will do this 
intermitanly and not all the time.  Sometimes it will play the way 
it use to and is suppose to and other times it will do it's 
abnoxious new short swish computer synthisized sound.  It doesn't 
sound at all like a nice clear crash cymbal when it does it.  It's 
just abnoxious.  

I did notice, however, most of the time when it starts to act up 
like this if you hit the cymbal toward the center and not the edge 
then it will still crash, however, when you choose some other 
drumkits like the one that has the gong sound and not a crash sound 
it won't make the gong sound at all, no matter where you hit it.  

Has anyone run across this problem or something similar before?  And 
is there a fix besides having to RMA it back to the wholesaler for a 
replacement?  Please let me know if anyone knows the fix.  

Thanks,
Glen
gdearl@...