I got MMTTY running on one of my stations that I was using a TNC with before. Everything was working fine then I started getting a MMTTY crash about every 15 mins. It would say " invalid page fault in module WINMM.ddl" Any ideas? I have same ver. WL / MMTTY working on another station with no problems. Is it a soundcard problem? Thanks for any help, Mike K5NZ