Q: If the MIDI/GAME port is enabled in the BIOS setup, the device manager will show yellow "!" under Windows® Vista™. Why?(3/19/2007) A: Microsoft® had removed the support for MIDI/GAME port under Windows® Vista™. Please kindly refer to below Q&A No.4:
http://forums.microsoft.com/TechNet/ShowPost.aspx?PostID=2319740&SiteID=17