If you own an Oculus Rift headset, good news: It should work as normal again. The Facebook-owned division was caught off guard yesterday when a number of units suddenly stopped working. The problem -- much to Oculus' embarrassment -- was an expired security certificate that checks whether the software you own has come directly from the Oculus Store. The company worked through the night on a fix and finally it's ready as a patch from the Oculus website. It sounds simple enough to install; just download the file, select Repair and then relaunch the Oculus app. That's the promise, anyway — let's hope the problem is finally sorted now.