try looking in msconfig. Start - run - type msconfig and press enter. When it opens go to the top right hand side and click on the startup tab. When this opens go down the list and see if you can identify photogallery. If you can take the tick out of the left hand end box. Restart the pc and you will get a box open - put a tick in the left hand side box and ok. With luck the message will not appear again.