Windows Photo Gallery in Vista not REFRESHING???

OK, I've been Googling this off and on for a couple days and haven't found
anything even CLOSE ... Here's the issue I'm having:

I have a Windows Home Server on which is a folder with pictures in it (all
*.JPG for purpose of this discussion). I have a Toshiba laptop running Vista
Ultimate and have the WHS pictures folder referenced. My daughter added some
pictures to the WHS folder using HER laptop. When I use MY laptop, the new
pictures are NOT there, and despite clicking every conceivable REFRESH
button, I can't seem to GET them to show up.

Has anyone experienced this? Or have any idea how WPG keeps track of this
stuff (which might lead me to a way to force a full refresh, etc)?

Thanks in advance ...

Mark Stepan
Clearwater Minnesota