Errors after installing ServicePack3

Hi!
I´ve installed the ServicePack3 for VisualStudio and now I always get an error message concerning gl.h!! It´s “fatal error C1001: INTERN COMPILER- ERROR”…
How can I fix it??
Please help, those errors are extremly annoying…

Well, Service Pack 5 is available, it can’t hurt to try that one.
http://msdn.microsoft.com/vstudio/downloads/updates.asp