Safari 5.1 'Broken' in OSX.6.8?

Question

I just installed Safari 5.1 and have found the following 'issues':
'New Window', 'Open in New Window' do not work. A window is created, but it can only be seen by selecting it fro the Window menu. Even then, 'Back' does not work, the page is slow to respond to clicks and will not accept keyboard inputs (but scrolling with the mouse works?). This also happens (as would be expected) if opening a new window by clicking on a link (from an email, etc.). Tabbed browsing appears to work 'properly' (but still cannot open a link from an email using tabbed browsing so this is only half a solution.)
Private Browsing is not possible because the warning is self dismissing (must be on auto-cancel - it flashes on the screen quyickly but no user input is possible).
I am assuming Apple will fix it soon. I am a bit disappointed that these problems were not caught beforehand.

Answer 1

I updated to Safari 5.1 (without any extensions installed) on 10.6.8 on my MBP '08.  "Clear History" does not re-set the purple "visited" hyperlink to a blue "unvisited" hyperlink, so I'm not sure if the History is actually being cleared.  I've been through the new Safari Preferences, and I don't think I've overlooked any History-related settings.
Resetting Safari didn't address the issue, but re-starting Safari did.
I've already submitted a "Report bugs to Apple..." since, as a web site developer, I need this functionality to work properly (i.e., without re-starting Safari every time I need to test visited/unvisited hyperlinks).  I haven't had a chance to test the "Clear Cache" functionality yet.