Take a look below the logo and see if there's not a small line of text. In that line will be the exact update that you have, and probably a year with "(R)." There might even be a build number, and those are most often in [ ]. The line of text is not really easy to spot, so look carefully. If you have any problems, just do a screen-cap before the credits start to scroll. Post that screen-cap with the little camera icon in the editing screen's toolbar.
Oh bloody hell.
Thanks. It =is= 4.1. In another topic 'Ann' seemed -sure- I was on the wrong v. I looked at the BIG type which says '4.0 Ironside' before scrolling away with credits.
In the immortal words of Emily Litella
Not to worry. Sometimes that type is pretty small.