From the second I got my 1050, I was very bothered by this seemingly obvious omission.
However, I eventually noticed that the PLAY button also works as an enter button on all my DVD menus.
It's conveniently located right below the direction arrow buttons and is easy to reach with your thumb.
I hope this helps,
Cheezer
[This message has been edited by Cheezer (edited August 08, 2002).]