Hi Jane,
It might be due to a windows hotfix that corrected a "wmf exploit" try
this, click on start then "run"
copy and paste this into the box
..
regsvr32 %windir%\system32\shimgvw.dll
now click ok, if you get a message that shimgvw.dll has been registered try
the pix and fax viewer again. A reboot might be rquired, not sure about
that.