Fixing disconnected vertex I have a planes mesh of which I thought it was connected.
But when I drag the one edge around, I can see that it is not connected.



I tried just everything I could image, but I have not been able to fix it.

Can anybody show me how that could be done?

I have uploaded my blender file here:

http://www.pasteall.org/blend/36943

Thank you very much for the help!
In edit mode RMB the vertex labeled 1 then Shift-RMB the 2nd vertex.



Alt-M (merge) select At last.