I have seen that many people in the past have reported this problem so I am assuming that there is a solution; I just can't find it.
As of today '26th June 2008' I still can't get verification of my site so that I can start using webmaster tools.
I have checked & double checked the meta data. I check the source of my webpage as displayed in the browser and it matches perfectly, so why do I still get the 'We weren't able to authenticate the website' please try again message.
Help would be appreciated A.S.A.P. as my clients are now starting to suffer.
In anticipation...
Jonathan parker