Specifying a CVS revision

["The Mackenzies" <themackenziefamily gmail com>]

How does one specify a specific CVS revision of a file to compare against? I have brought up meld and selected new-->version control browser.

 

However, it only lets me compare my file against the head of the repository. I can not find where I can specify which version in the repository to compare against.

 

Thank you,

Parker Mackenzie