Hello Merk,

GM.DLS is the default General MIDI sound file included with Windows. It is associated with the GS Wavetable, and is used by the Coyote Wavetable DXi synth. A quick fix for you is to go to Opt. | MIDI Driver Setup in Band-in-a-Box, click on [DXi Synth Settings], and select the Roland VSC-DXi.

This doesn't solve the problem of your missing GM.DLS, but you should be able to find out how to replace that file - perhaps on Microsoft's knowledge base. You could probably copy it from another Windows XP computer. It should be in C:\Windows\system32\drivers.

It is ok if you have both version 2011 and 2009 installed on your computer, in different folders. That won't affect the operation of Band-in-a-Box. Some people keep a backup of their older versions that way. Noel's suggestion is good, make a copy of your BB2009 folder to C:\bb, then install version 2011 from your hard drive to this folder.

Andrew
PG Music Inc.