Technical difficulties with site - "403 Forbidden" msg

Something's up... half the time when I open a thread, I get a 403 "forbidden" error. Refreshing a few times usually brings up the thread.

Is it just me?

It happens to me sometimes in firefox. I either close it and retry or use explorer. Its been fine for me though for awhile now.

Seen the 403 errors with both IE6 and Firefox 1.5. In either case, it goes away a few moments later...