A couple of days ago my Steam Controller started acting strangely. Whenever I turn it on there's a high chance it will just turn itself right back off again, but it only does this while Steam is running.

I've tried changing batteries, and it makes no difference. If I can get the controller to stay on, I can game for long periods, so batteries/power doesn't seem to be the issue. It even plays the shutdown tune, which it doesn't, in my experience, when losing power from a dead battery.

I tried switching from the Steam Beta to the main release, and that did not change things. Either way if Steam is running my controller will almost always turn itself off immediately after I turn it on.

If I can get the controller to stay on, and getting it to do that seems to be random if Steam is running, then it seems to function fine.

Any ideas as to what might be wrong? Anyone else having the same problem?