Hi all, Thanks to those who suggested I check the Writelog program group! That was it! I used the soundcard utility, and found that the Rx box had reverted to the other soundcard. 73 all, Phil GU0SUP -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 266.1.0 - Release Date: 18/02/2005