EXS 24 Logic Sampler Users Group

I'd really this is an updated glitch but it's very similar - I'm running a 
p4 2.0ghz system, using lapw in xp - I recently edited a sample by inserting 
some strip silence. I then energized the last half of the same sample to by 
boosting the amplitude. Now, a sample that was playing back just fine, is 
sizzling out and causing an ASIO overload - wasn't able to process all the 
data in time - error message. Any suggestions!? Please?? :-) Thanks,

Pete