Thanks Ron,

It turns out that it was the wheel mouse that was at fault

Thanks again
Ian

"Ron de Bruin" wrote:

Hi Ian

look here
http://www.mvps.org/dmcritchie/excel/ghosting.txt



--
Regards Ron de Bruin
http://www.rondebruin.nl



"Ian" wrote in message ...
Whenever I open Excel and I click on an empty cell it automatically
highlights lots of other cells according to where I place the mouse, so
wherever the mouse moves to those cells that it has passed over become
highlight and I am unable to turn it off.
It appears to work in the same way as using the F8 key in Excel.

Can anyone help?

Regards

Ian