The bottom line is – Quick To-Do Pro works fine under Vista. All the functionality is there and it works. There are, however, few interface things that require fixing. The work is in the progress and version 4.6 is coming out shortly.
However, there are few things that Quick To-Do Pro users can do immediately. First of all, it’s the default toolbar text behaviour:
If you experience this problem, here is the solution:
Right-click the toolbar, choose Customize… and un-check “Small fonts in buttons captions” check box.