I have this problem a lot of time too....   every 5-10 bot checks it happens to me...

I would consider my self lucky then, I've never
had such a problem... Even if it should happen,
I would refresh the page or something

I get it every 5-10 attacks.

I'm going to have to look into this today. I want it to be removed entirely but it is vital I find an alternative method of catching cheats.

There have been times where its actually come up 3 times in a row...

I can second that.