The problem starts when I upgrade a windows 2000 PC from service pack 2 to service pack 3. When I am in a folder and highlight a TIF image normally the image would display in the preview mode. However after the upgrade, many of the TIFs are shown blacked out. Some of the TIFs still display properly. They were all displaying properly before the upgrade and this has happened on all PCs that I upgrade. If I double-click the images they all display correctly in Kodak imaging window. I have checked the file types association and reset but to no avail.