Hi
Not sure if this will be the cause, but try right clicking on desktop, select properties.
Click on the desktop tab then customise desktop.
Click on the 'general' tab andwhere it has 'My Current Home Page' with a tick box next to it, click it - so that if it's ticked you untick it and if it isn't ticked you tick it.
A long shot but worth a try..
Not sure if this will be the cause, but try right clicking on desktop, select properties.
Click on the desktop tab then customise desktop.
Click on the 'general' tab andwhere it has 'My Current Home Page' with a tick box next to it, click it - so that if it's ticked you untick it and if it isn't ticked you tick it.
A long shot but worth a try..