Thanks Ryan.
The first answer is: yes, we've downloaded and installed the service pack. Yes, it does freeze. What I'm doing is when I click on 'water' in Surveryor mode and I place the dotted line area that is always circling, nothing happens. It stops circling.
Computer spec's. Dell Inspiron 530S. It's a Core 2 Duo processor,. 2.2Ghz, 800 FSB, 2G RAM. On board video card.
(This is Bob's son that is typing this and giving the spec's. Dad's sort of computer illiterate, so be patient!!)
Thanks for your help,
Bob