Your opponent was inactive for too long, that should not lead to an automatic loss.

[Tinus]

The inactivity happened to me as well (while I was not inactive!). The application shut down unexpectedly and when I reopened the application and logged in again I came back to the game that I was playing. However, after making one move I had no control over the game anymore. Nothing happened and I couldn't make any move whiley timer was ticking.

Would these problems be less common when playing in a browser?