I'm using Windows 7 Home premium on an HP Pavilion laptop. Maybe two weeks ago, I stopped being able to create new folders in the Windows Explorer box; I click the "New Folder" button, and nothing happens: no error message, nothing. Around two weeks ago, I also reinstalled Firefox to get rid of some adware virus (success: the adware is gone!). I do not recall the exact timing on when I did the reinstall and when I stopped being able to create new folders, but I'm wondering if the folder problem could be related to the re-install. And if so, what can I do about it? Thanks so much for any help you can offer.