Greetings. Not exactly a showstopper (once you know the workaround, anyway), I''ve encountered this bug before, and worked around it without really isolating it too well. This time I''ve isolated it better. I''m running Instiki 0.11.0 on Windows (my desktop) and a FreeBSD (I think) remote server. I cannot replicate the bug on the Windows version (installed from the same download as the Instiki on the FreeBSD server). I have no idea why. While writing text in a wiki page, I suddenly began getting this error message when I clicked "Submit" - *** begin message *** Precondition Failed The precondition on the request for the URL /dvl/save/Key+maintenance+tools evaluated to false. *** end message *** The text was very plain. I was attempting nothing unusual that I could see. I did a cursory check for character code problems (the text had originally been written in jEdit and copied into Instiki) and found nothing. Then I did what I always do at this point: I began a binary search for the problem. I loaded half the page and clicked submit. No problem. I then loaded half the remaining page. Problem. Continuing this routine, I finally got down to this text string: "...can be accomplished either with FTP (file transfer protocol) programs built into..." Insertion of this will cause the Problem. Nuts? Yeah. I was clueless as to the real issue. Continuing to break it down, I found that Instiki was choking on "FTP". This fixed it: "...can be accomplished either with <nowiki>FTP</nowiki> (file transfer protocol) programs built into..." Playing with it a bit more, it turns out that "FTP" on a line by itself is OK. In a header line (e.g. "h2. FTP blah blah") is OK. But put "FTP" in the middle of a sentence and the page will be rejected. I do not recall what caused this identical problem for me in the past. I never isolated the exact issue. I also have not the skills to take this further. So...hopefully someone can make sense of this! -- t. ===============================================Tom Cloyd, MS MA, LMHC Private practice Psychotherapist Bellingham, Washington, U.S.A: (360) 920-1226 << TC.BestMindHealth.com / BestMindHealth.com >> << tomcloyd at bestmindhealth.com >> ================================================