asterisk users - Sep 2005 - Emergency Asterisk Guru help needed -- Yucky sound with MOH

I've recently upgraded *@home to CVS HEAD and in addition to losing the 
ability to use the MySQL database, I've noticed that my MOH has degraded 
significantly.  I've tried all sorts of remedies -- removing the x100p 
card and loading asterisk without the zaptel drivers and such -- still 
have terrible MOH. I've used .raw. sln. mu. .gsm .mp3 files for the 
music on hold and it still sounds terrible.  Actually after about 10 
seconds the sound begins to deterirorate and gets scratchy, and washed 
out sounding,   Music On Hold to locallly connected SIP phones sounds 
fine, it's just remote phones that connect to my sip providers.  I don't
think it's the SIP  providers as this only started with the upgrade to 
HEAD.  I've also installed and removed format_mp3.so to no avail.

Anyway, I'm losing sleep over this and would greatly appreciate it if an 
Asterisk Guru might be able to shed some light on this for me.

Thanks,

B.