I'm using Safari 5.0 on Mac OS X 10.6.3 (fully up-to-date).

When I used the browser Back button to return to a forum listing from viewing a post, the Forward button (which ought to take me 'back' to the post that I was viewing) does not work.

e.g. I start here:

http://www.flyertalk.com/forum/ameri...p-rewards-410/

I click the 'Useful websites' sticky, and I takes me here:

http://www.flyertalk.com/forum/ameri...-websites.html

I press 'Back', I am returned here:

http://www.flyertalk.com/forum/ameri...p-rewards-410/

So far so good, however now the 'Forward' button is grayed out; which it shouldn't be. I notice that the button seems to be active right up until the page completes loading, at which point it becomes unavailable.