Tried posting this yesterday; but it never got added to the thread.
I update the AJAX controls in my system from 4.3 to 7, in order to fix the AJAX controls not being displayed on tab panels. Now the tabs are taking over the scrolling position, alway forcing the scroll to the top of the tabs, whether the user is modifying something on the main form or within a tab panel (note: I talking the scroll bars for browser window not scroll bars on the tabs). This is extermely annoying to my users.
Looking at the latest AJAX Souce code from December, I noticed that the _app_onload function forces the focus to the active tab. I believe this is occuring upon every postback. Before I muck around with the source, I wanted to see if there was a reason for this.
Note: I did find others complaining about this functionality on other threads, like getting started; but the only answer I saw was that it was by design; whcih doesn't help fix my users issues.