Hi Michael,
Just to make sure that this has no impact, it is wise to double-check "Run as administrator". This is different than logging into Windows as administrator.
To start up either BIAB or RB, right-click on the startup icon and select "Run as administrator". This gives Windows additional privileges. On my system, I need to do this as RB crashes otherwise.
Also.... what version of BIAB do you have and what version of Windows are you running?
Lastly, when you installed the soundcard, did you go into the BIOS settings and disable any on-board soundcard? If you didn't, this could be creating issues.
Regards,
Noel