Rav, I have worked with, employed, and worked for people over the past 35 years who were sometimes 100% sure of something, and who were proven wrong. This neither made them liars, nor was pointing out they were wrong a way of calling them such. It merely meant they were that much more certain, but just as wrong. I've been in the same boat myself, able to recall specific facts and visuals supporting a particular view--only to find that I'd been incorrect all along. I may have felt sheepish afterwards depending upon how fervently I argued, but I never felt that the person who fortunately corrected me was calling me a liar.
You might find a visit to SYM, Spear Your Mind, our non-gaming forum on this board, an eye-opener. On it, we discuss and argue in a civilized fashion a variety of questions, frequently correcting one another, and nobody ever believes they're honor is being besmearched when their hard-held facts are questioned.
For the rest, if you haven't tested it with an unpatched game (and we still have people who play that way--even people who prefer that, due to some extra cheese
One more point, and this is directed at everybody: if this thread turns into a flame arena, posting privileges will be suspended, and the thread closed. The forum's for answering questions, not squabbling angrily.