We've had several customers report that after installing Windows Vista SP1, all the 24-bit formats disappear from the Advanced tab for our devices in the Sound control panel. We checked, and sure enough, all the 24-bit formats that used to be there with RTM are gone with SP1. Is there anything that would have changed with SP1 that would cause this? Thanks, -Dan -- Dan Germann Digital Audio Labs ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.com/