Tropical_Island - 11:26 am on Sep 24, 2008 (gmt 0)

I have often written to AS about this & received this explanation.

If a person is outside your selected countries however is using the search location server of another location your ad may appear.

For instance if an American is in Brazil with his laptop & is using Google.com your ad may appear. Or a Brit on .co.uk.

You will pay for these clicks.