OOH, i am using google web accelerator, i will disable that and see how it goes. i just logged on for the first time today and it said 291 unread, i checked my PMs and then it said 0 again, THIS is really pissing me off.
Web accelerators are useless for forums, BTW. All they do is save a copy of pages you visit, so it can recycle them the next time you visit. That don't work so good on a page you know will change every time you visit it.