Does anyone know if there is a specific audio codec buried somewhere in the MSN 7.5 software? I have tried everything I can think of do get rid of choppy distored sound on PC running Win XP SP2 with all updates. Audio works fine for playing CD-ROM and mic on the PC feedback on speakers. I tried installing a PCI audio card and bypassed the MoBo sound (ESS 1969 or something) with no improvment. No difference - only the MSN audio is chopped up. The video channel on MSN 7.5 is fine, but is always kinda slow (on all my PCs). I have the latest version of MSN 7.5.0324. Fairly sure there is no problem with router or firewalls as two other PCs are behind this routerand work just fine on MSN 7.5.