I've tried entering a bug three times, once from linux, once from XP/firefox and once from XP/IExtorter and get through the process of entering all my information to get a blank page after "Submit your bug to Bugzilla. Now that you've gathered all the right information, you're ready to report your bug to Bugzilla. Click the button below. If you've filled in all the right fields, your new bug will be entered in to the database. "