When I start PowerPoint at work, all of the premade slide templates are there when I start working.
When I start PowerPoint at home, the image of each template takes about 15 second to appear in the task pane, so it is several minutes before they are all visible.
Why does this happen? I don't see either any long disk activity or any long internet activity while I am waiting for them to appear. I see a blip of disk activity just before each one appears, but nothing else.
If I close the task pane and work on something else, they are all there when I return after several minutes.