Visual Studio not colour coding .cs text correctly

this may be a little difficult to explain, but I'll try.

I'm creating a DotNetNuke module in C#. The text in the .cs files are not colour coded for some reason. Comments are black, key words are black, all text is black. As if Visual Studio is just reading the file as plain text.

Now when I create a VB module, everything is fine. Comments green, key words blue.

I've 开发者_如何学Goadded the following tag to web.config

But that still did not help.

I'm running VS 2008 express, and DotNetNuke 5.

I added the Module by right clicking at the root of the tree, then add new item, then DotNetNuke Dynamic Module.

Thanks in advance!

It seems Visual Studio express and Visual Studio Professional conflicted. I uninstalled Professional and everything's fine.