hmm.. I'm wondering, that flaw thats been found as regards the way web addresses are handled and the subsequent patch that was released to fix it.... I'm wondering if thats got anything to do with it all as most of us, regardless, havent had problems like this until VERY recently.
Either the patching hasn't been done and a half-hearted attempt has failed or the patch needs a patch??
Just a guess, don't shoot me down in flames
(and nobody seems to have mentioned it yet either...!)