Must admit I also hard a lot of trouble with the site as it's not imo really user friendly.
On the help bar at the top of the page I found the "left arrow with the magnifying glass" was a useful tool in going back. Also, to get to a location that I wanted to check I had to start from scratch several times!
In answer to your query, I assume you ticked the appropriate box in the menu on the left. I found if you did only one or two at a time it seem to work a lot better.
Shame none of us work there!!!
For those who missed my post this site is great for checking mining information in Qld.
http://www.dme.qld.gov.au/mines/tenure_maps.cfm
WCL Price at posting:
50.4¢ Sentiment: LT Buy Disclosure: Held