I'm currently having thisproblem. To elaborate, I use an SB live value card:
I have a problem in setting the default midi device
in Sound and Audio Devices dialog in Control Panel.
(on winXP Pro)
There is an available device in the list of devices
but everytime I select one and click apply, the
default device is always set back to empty.
This was working before.
I have searched google about this problem for days but I can't
any. The links that came up are always about external
midi devices not detected by windows and/or a PC or sound
card that cannot play a midi file (but not about a "not
able to select a default midi device").
Any idea how to fix this?