I have the latest Media Player (ver 9) available for W2000, and I've loaded all the latest updates from Microsoft. The sound card works fine with both Vogone (ver 3.106) and Keyrite (ver 2.0.1.2) but the two latest versions of Khpro and Microstudio is where the problem is (versions 4.107 and 4.002). I guess I'll submit another support ticket to MTU asking for more detail on the error "MixerGetLineControls:Invalid Parameter passed" for clarification, and then contact M-Audio to see if they have any idea what is going on.
I've tried all combinations in the M-Audio panel to try and disable the mixer portion, but to no avail.
Thanks for your ideas and tips. I appreciate any comments to get me back up and going.
Best regards
