Excel problem opening files…

Hi,

One of my users cant open an excel file that is saved on the desktop or any other excel file thats saved anywhere else on the machine. Excel works fine loads up everytime you open the file but it only goes as far as opening excel it wont load the information in the file. But you can go to file and search for the file and open it and it works fine that way. For simplistic reasons tho we would like to be able to double click the file in a folder and have excel load on the saved page. Any ideas. Using office XP on a XP machine… Thanks in advance.