email response

I received an email notification that there was a response to my question,
however when I clicked on the link in the email to send me to the response,
the IE window was blank. I also tried it allowing pop-ups.
I tried to go into the group to find my question, but could not locate it.
It appears there is a maximum of 100 on the query request and after trying
several of the keywords i used, decided to send this post. My question in
the original post was:
I have a fairly large website with many photos using thumbnails. Suddenly
some of the thumbnail links are broken even though they had previously worked
properly. Also, I had not been updating any pages in the problem area.
Thanks for your help in advance.