I've noticed a peculiar bug lately... Obviously I'm using Opera (7.23).
When I surf the NOOL-forums I open several threads (shift+ctrl+click) in the background. Then I read them one by one and close the pages as I read them.
Well, when I want to go to the second page in a thread I click on the "2" (and a doPostBack-function is executed). Mysteriously, I end up on the (closed) page I read previously (different thread). I'm wondering if the doPostBack-function gets confused with the thread IDs. Perhaps some ID has changed since I loaded the page?
If you want I can try to recreate the problem. Let me know what I should look for.
/TLV