I have used the Create 3D boxes tool before but lately when I select the tool and drag on the page I get nothing. I wonder if I need to reinstall the app. Anyone else having a problem? What else can I do? Any suggestions?

Windows Vista user (yeah I know but that is what I have at the moment).

If you try reinstalling, remember to also delete your Inkscape preference. It's under app data somewhere. I really should make a note of it and put it in the FAQs.