Hi Peter,
Yes that is exactly what happened, I only changed the OS.
I brought back the SG1 to 4 now and it playes without any noise.
There is however a new phenomenon (to me that is), which is that every now and then there is a very short break in the music.
It is not a regular patter so not every minute, but just happens. it occurs on a very low frequentie so not really disturbing but I though you might wanted to know.
Apart from that I enjoyed listening to Verdi's Requim last night and couldn't bring myself to lower the volume, so much I appreciated the SQ
I changed my profile to let the specs be included, but it doesn't show yet. so just to be sure here are these specs:
Windows 7, AMD Turion, X@ Ultra Dual-Core Mobile ZM-80 2.10 GHz, 3G RAM. 32-bits
Output USB to music system through XMod external soundcard no DAC
regards
Leon