I can't move anyone

So I was playing against my friend some chess (Online Chess, not Live), when I suddendly wasn't able to move anyone. I can pull my figures, but whenever I drop them over a new field, it just jumps back to where it came from.

The game is cleary not over and neither of us did anything unusual. So what could be wrong?

EDIT: We just found out that both of us are having the message "My Move", but no one can do anything. Is it glitched up?

Was a cat involved?

One of you is playing with an outdated iPhone app -- I believe I saw comments stating that upgrading it would prevent this, but for the game that's in that state you may need administrator intervention.  Try the "Help & Support" link at the bottom of each page.

Probably not.

We are both playing from a computer.

A new update has been added to the Android MarketPlace.

If you (or your opponent) is using Android, can you please go to the Android Market place and update.

Well thanks for the info, but I thought I made it clear that we aren't playing from an iPhone, but from a computer. =P