Hi Imar.
I am building a website (
http://astak.nes56.net) with the help of your book.
In this site, I have photo albums similar to your Gig Pics. When my visitor wants to view a picture full-size, he may right-click on the thumbnail and select View Image or Open Image in new Tab, depending on the browser. When he returns to the ListView, the current item in the list is always the first item of the first album. The DropDownList still shows the same album as before. As far as I can see, your PlanetWrox demo site behaves in the same way. Has this maybe something to do with ViewState?
Perhaps, I should open a new page to show a picture full-size when the visitor clicks on a thumbnail? Any suggestion?