Jackbsok, have you upgraded to Microstudio 4.20 yet? If not, please do. I'm sorry we have not been following this Thread up to now, but I have asked MTUSUPPORT to take a look here. I'm not sure why we recommended a new audio card. I'll check into that.
Please post back here if you have installed 4.20 and if it fixed your problem or not. Please post exactly what the error message now says with 4.20 IF you see it.