Build 1240 on Vista.

The following is observed in all edit boxes in the "Track Properties" dialog box, and also while in-place editing nodes in the tree (e.g. while editing an album node (album title) in tree).

Steps to replicate:
- left-click to position cursor between character 1 and 2
- hold down shift key
- left-click to position cursor between character 4 and 5

Expected behavior (standard Windows behavior): characters between 2 and 5 get selected
Observed behavior: nothing gets selected; cursor is simply positioned between character 4 and 5

(Note, dragging mouse to select or to extend selection works, shft-clicking does not.)