Page is blank, except for text at bottom, when "viewed" with Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9pre) Gecko/2008042705 Minefield/3.0pre - Build ID: 2008042705, under Windows Vista Home Premium.
Minefield is/are/am beta-test releases for Firefox 3; I suspect that your Firefox-sniffing code does not allow for Minefield. However, I'm not certain of that, nor have I done any testing such as running Minefield in Safe Mode to eliminate extension interference.
[EDIT] I started Minefield in Safe Mode, so that no extensions were running. Page is still blank.
Edited 1 time(s). Last edit at 04/28/2008 08:51AM by John Liebson.