In our school computer lab this afternoon, 12 students tried to access an embedded FC form at the same time and it did not open. All they saw was the "Last modified..." message, but no form. The Internet connection was good as other parts of the site where the form is embedded were working fine, and strangely, the form was working on my computer, even after repeated refreshes. All computers are connected by wire to the same network. I also tried to open it on another student computer and it did not appear. When the students left, I refreshed that computer and the form was there. Any idea what could be going on?