Find one of the TIF/fax files that you would normally double-click on to open. Click ONCE with the left mouse button to select the file. If you are using Windows XP, click once on the file with the RIGHT mouse button. If you are using any other version of Windows, hold your SHIFT key down while you RIGHT-CLICK on the file. In the pop-up menu that appears, there will be an option called Open with. Click on this option once with your LEFT mouse button. A dialog box will come up asking you which program you want to open this type of file with. Depending on your OS, you're looking for either Wang Imaging, Kodak Imaging, Imaging Preview or Windows Picture and Fax Viewer. Select whichever one you find, check off the box labeled something like "Always use the selected program to open this kind of file" and then click on OK. Your TIF/fax files will now open the same way they did before.