OK, thanks.
I have only tried with the 64-bit version, but...
if I rebuild the project, to fill the project-specific browse database, I can go to definition of "DescrItems" (for example) without problems. I can also go to definition of "false" (for example) without problems - using *my* version of the system browse database. I don't see any project-specific functions in the sample, so I can't test that. I see several C runtime functions, but there is no "Go to definition" for them, rather the more helpful "Help about: xxx".
I obviously don't have the same machine as you, but I can't immediately find a problem here...
( not sure why, or if it matters, but the X86 project is refering to "C:\Programme\..." while the X64 project is refering to "C:\Program Files\..." - are we talking about *two* machines? )