Greetings;I'm running Mozilla 1.5a on 2.6.0-test3 (almost unpatched). Browser correctly goes to the last scrolled position (on most pages) after clicking the back button. I have periodically seen the symptom you describe, but I don't believe it's kernel related, since I have seen that symptom on 2.4. I would run more tests on both kernels, and look for additional variables that could be contributing to it. You might also try then non-mm2 test3 in the remote chance that it is a kernel problem. Also, make sure the problem isn't specific to certain web pages(right now, the problem manifests itself on the bugzilla pages, but not on a handful of others that i've just checked), and check against bugzilla 210992: http://bugzilla.mozilla.org/show_bug.cgi?id=210992
I've just come across another bit of 2.6 trivia.
When browsing the web using mozilla-1.5a on a 2.6.0-test3-mm2 boot, I find that using the back button takes you back to the top of the previous page.
So I rebooted to 2.4.22-rc2, and now the back button takes you back to the point of departure on the previous page.
Thats the best description I can give, and of course I have NDI what might be causeing it, but it is a bit startling.
This should work as expected before a real 2.6.0 is allowed out to play.