One example of the type of problem I'm having has to do with the New Topic screen. I log in and click New Topic. The new topic screen does not include a username/password field (which is correct - because I'm logged in). Then I log out and click New Topic. The window still does not include a username/password field (which is no incorrect because I'm logged out).
There are similar refresh issues with posts not appearing until a manual refresh (in the browser) is done.
To alliviate this I've added the two lines below to the header section but after reviewing the help posts on the forums it doesn't seem like anyone else is having this type of problem.
check your browser settings to make sure that you have "check for newer pages" under your temp internet files set to automatic rather than never. if that isn't it, then check with your host to see if they have caching set on the server.
Has the addition of the meta tags solved the problem? if not then to me that doesn't neccessarily sound like a refresh issue but perhaps cookies. Try clearing your cookie cache, restarting your browser and then trying again.
Also check that your host doesn't have compression on the server enabled, this has caused issues like which you descibe before.
Aha! Me thinks Nikkol & Gremlin hit the nail on the head.
Compression was enabled for "application" files (which would have cached them). Now that I think about it, this explains a similar refresh issue I had with another site too.
Turning off compression for application files seems to have corrected the problem