glx module

[Jim Chapman]

I installed release 2.2.0 and added the xorg packages including 
modular-xorg-server.
When I start X I get a message

Failed to load module "glx" (module does not exist, 0)

This prevents the xorg.conf which uses the intel driver from starting. 
If I change the xorg.conf file to use the vesa driver I still get the 
message but X starts.

Is this a problem with the package and how do I get the module?

Thanks