I've had trouble at this site and this site only posting and sending PM's. I emailed the head people here and I'll probably get a reply soon and maybe you should try that too and see what they say.
About 75% os the time I try to send PM's or post, the entire web page closes down as if I had clicked on the X box to close the window. I have been careful to make sure I'm not clicking on anything wrong. I go many places on the web and this is the only site this has happened to me. I know it sounds silly but it's almost as if something doesn't want me here because the whole web page just shuts itself down and I get so mad!!! Hopefully an email may help you figure it out! Good luck!