Topic: Multiface I and Sonar X1

high to all;
I am using multiface 1 and pci on XPhome with I7 quad core, with 2 uad1 cards all seem to be doing there assignments individually ,however in Sonar X1 i get about 2 to 3 seconds of audio and then its quiet ,audio still seems to be running ,midi connections acknowledge but no sound. I reset and again for a few seconds then silence,even with soft synths as well. Is there any advice out there.

kindest regards
Linwood