Archived from groups: microsoft.public.windowsxp.work_remotely (More info?
I don't have a solution for you but I'm having the same problem you're describing, I use RDP on my laptop as a 'remote control' for my desktop pc which has all my audio gear attached.
The problem seems to be that remote desktop installs a 'Microsoft RDP audio driver' upon RDP (Remote Desktop Procotcol) connection to the remote computer, which it uninstalls upon disconnection, it appears to do this whether the sound is left at the remote computer or brought to this computer. occasionally it will leave my audio driver (soundblaster audigy plat) alone and work as I want it too but in the majority of cases it installs this it's own proprietary driver in there which stuffs it all up.
basically don't go uninstalling your own sound drivers and such cause that's not where the problem lies, it's in remote desktop and the RDP audio driver.
Hopefully someone can let us know how to disable this audio driver from being installed??