Comment 4 for bug 778320

No, it's not your fault, I have asked because a similar bug has already been reported by another user, and wanted to verify whether this is the same one. As you have said, this seems to be the same, so I am marking this as the duplicate of bug #778158. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.