Highlight + Scroll Not Working In Explorer?

I'm trying to select multiple files in a long row of files, to do this I drag a selection box to select all of the files I want. The problem is that I can't scroll with the mouse wheel while either of the mouse buttons is held down, or at least not outside of the library. The 'library' sub-folders are the only locations in explorer that this still works in (it works everywhere else, like browsers).Recently installed QTTabBar and Classic Shell, I also ran four .bat/registry files....Explorer_Auto_Arrange.bat Disable_Numerical_Sorting.bat/Enable_Numerical_Sorting.reg After uninstalling the two programs and running the Disable files, I still can't select and scroll in folders outside of the library. I don't think it's my mouse either because, as I said, I can do it in the libraries and the browsers; and I have a Wacam Bamboo Tablet which let's me click and after clicking with it and trying to scroll with the mouse, it still doesn't work.