The Blue Screen of Death, or "BSoD" as it's commonly referred to, used to be a common problem on Windows machines. That's why it's a bit weird to hear that it's now making an appearance on the iPhone 5s, according to some users who are reporting the issue on Apple's support site.

The issue appears to crop up only when certain apps are used, so it's not entirely random. The apps include ESPN Score Center and Numbers, one of the apps that's part of iWork. "When using my phone going in and out of apps, my phones screen will suddenly turn solid blue for about 2 seconds then the Apple logo will appear and it restarts my phone," one user said. "I've also found that if I open a document in Numbers, then press the power button, the phone seems to power itself off almost instantly instead of just going to sleep," another reported.

Right now it sounds like something that could be solved with a software fix, likely to iWork and to ESPN Score Center. We'll let you know if Apple comments publicly on the matter. For now, check out the video above to see what the bug looks like.