Cannot open Property Expression Editor

Hi,

I want to change expression of a variable but dont see ellipses icon in expression. The variable property EvaluateAsExpression is assigned TRUE.

I have reinstalled SSIS...i am sure there was a icon to open Property Expression Editor for a variable...dont see it anymore.

-Amar

The ellipses icon is avaliable is SP1|||Thanks Rafael...now it there after installing SP1