Nothing huge, just you get the whole menu as a list of unstyled items, changing to compatibility mode fixes it but you may want to have a look at it as i guess it’s likely an easy fix there since 0 style gets applied to it.
Same on Google Chrome Mac OSX 10.8.2
Also Chrome 23.0.1271.64, Win7 x64. Tried doing a shift-refresh to force reload from cache and it’s still broken.
Ironically, it’s no longer broken for me after i go out of compatibility mode (normal => broken, compatbility => fixed, normal again => no longer broken, never seen that before !)
Breaking occasionally on my iPhone 5 too. iOS 6.0
Thanks for the heads up, I’ll forward this to our web guys 
Same problem here, Win7 64bit + Firefox
I found that it fixes its self if you refresh, not clearing the cache.
Seems it was fixed, three more bugs to go:
CSS font not applied to top menu on this page: http://unity3d.com/unity/download/download-windows
→ Edit: Fixed
The 404 error pages still uses the old menu: http://unity3d.com/unity/download/download-linux
→ Edit2: Fixed as well, you guys are fast…
The forward signs in the menu are pushed towards the last menu point in the documentation: http://docs.unity3d.com/Documentation/Manual/Plugins.html
Hm, no problems here.
it works when it wants, if its not working and appears that the web links are in a horizontal list, just refresh. Still an odd bug.
edit: Scrap what I said, Im on my macbook air, 13in, Google Chrome, OS X ver 10.8.2 and it appears to be buggered
Aye but what’s pretty weird is that the rest works fine when this does, maybe it’s getting served in an alternate css file and their CDN is acting up?
Also the search box auto-suggestions cover the text input box which is kind of annoying, especially if you want to type a few words!
broke in Aurora firefox and the search box too
It’s CSS problem… aways
Windows 8 pro running Google chrome and its broken 
Safari seems to be about the only place it works… strange.
Works great for me, Firefox 16.0.2 Windows 8 Pro.
Broken Windows 7 Chrome
Strange… i’m on Windows 7 Chrome too but everything works fine. Just reload the site. Clearing the cache could also help.
It’s on the list of things o fix, the web guys know there is a problem. Thanks everyone.