Typing in chat loses focus

There is a problem with typing in the chat window. I click on it so it gets the focus, then I start typing. The first character or few characters appear, but then it seems to lose focus; the next characters I type are lost, and I have to click in it again to continue.

I am using Chrome 5.0.375.99 on Windows XP Pro.

Regards

Rob

Does this happen every time you type something?

Can you determine which window got the focus?

No. About one time in ten.

I think google chrome and chess.com probably still have focus, just not the chat textbox; and my keystrokes just get thrown away.

It could be a dodgy mouse - or a similar device. If you were to explicitly click on a mouse button in between typing (and the cursor was outside the text box) -focus would be taken away from the text box. If a spurious mouse move or click gets detected, this would explain loss of focus. Could you try (as an experiment) using an alternative mouse ?

It's more likely to be some other application that is stealing focus. There's a registry setting ForegroundLockTimeout that's supposed to prevent it. It can be set using TweakUI or directly via a .BAT file. However, according to Google, other applications (or web code in a browser window) can change the setting and then steal focus.