selecting text / setting cursor problem

hi all,

i'm trying to do do the following:
- set a text selection in row 12, and from col 20 to 30
- set the cursor to the starting position of this selection (row 12, col 30)

i'm using the following code:

with editor
                .CurrPos.SetPos 12, 20
                With .Selection
                    .Start.SetPos 12, 20
                    .End.SetPos 12, 30
                End With
end with

it should be right - but the problem is:
the cursor appears at the right place but there's no selection :(
if i omit .CurrPos.SetPos it works but i also want the cursor to appear at the selection start.

what could be wrong?

thanks in advance,
fuxi