XF 2.3 Cannot navigate after upgrade to Beta7

[D33_UK]

I have successfully upgraded from 2.2.15 on our test server to 2.3 beta7. However, whilst I can fully navigate the ACP and can access the site homepage, I cannot navigate away from the home page. All links say "The requested URL was not found on this server."

 

[Paul B]

You have Friendly URLs enabled.

Make sure the .htaccess file is in place.

 

[D33_UK]

Yepp, was set the same pre-upgrade as post upgrade so don't understand why it "broke" post upgrade.

Thanks!

[edit] .htaccess was deleted - assume my error