Can't access deeper HFS folders from Boot Camp

Hi there,

this one is strange: I'm running Win8 over Boot Camp and everything worked fine until today: I can access my OS X HFS drive, but I can't go deeper, for example when I browse to my OS X Desktop folder it says: "Location is not available" "Element not found".

This worked before today as my music is on the HFS drive and my Windows iTunes was using this. But now I can't anymore.