When loading various pages on www.lib.utah.edu with Firefox we've been running into issues where the page will not load correctly and instead display a red screen. We've boiled it down to a corrupt cache, but the machines do not have a cache loaded whenever the user logs in. I should note that we are a University and manage the computers for labs, staff and faculty. We use the CCK application to manage the Firefox settings that we need and this hasn't presented an issue for our group before. We've tried to replicate this issue on other browsers (Chrome, Safari) but not other browsers are experiencing this issue. When Firefox is quit and reopened the problem does not surface again. Any advice would be appreciated.