Trying to connect to Xbox while playing Tentacles and keep getting a blank window - then nothing. I've seen this same blank dialog box pop up before when trying to sign into something else. Here's a screenshot of what I'm seeing:
Not sure what this is exactly; assuming it's supposed to be some type of login dialog box, but how do I fix this? Also not that familiar with the feature in general - are you supposed to have an Xbox console in order to use this feature? Or does it just link your score to an Xbox gamertag? Thanks in advance for any help! :)