Try this...open an image folder and right click one
of your image files...from the menu, select...Open
With / Choose Program.
Make your choice from the list or Browse to the
correct program if it is not in the list. If you want
the Windows XP default...choose "Windows
Picture and Fax Viewer".
Once you make your selection...be sure to check
the box that says: "Always use the selected program
to open this kind of file". (you will need to do this
for each format....jpg, .tif, .gif...etc.)
Also...you can right click an image and choose
Properties / Change Button...choose the program
you wish to use and click...OK / Apply / OK.
Also...in WinXP, you can go to...My Computer /
Tools / Folder Options / File Types tab...