I just responded to your PM on that. If you have the latest version of your browser (particularly if it's Chrome 'cause the latest release can be a little glitch-y at times), you may have to uninstall and reinstall.
ETA: At this point, I'll go ahead and recommend an uninstall and reinstall of your browser, 'cause it really does sound like a browser issue. It's a bit of a pain to have to do an uninstall and reinstall, but it really isn't all that onerous. If you'd like and you have another browser loaded, try that one first to see if you have problems with it, as well. If not, do the uninstall and reinstall of the browser you're using now.