XP SP3 and Pin/Zoom options

I believe it started after installing XP SP3 . The enable zoom buttons in lister.. doesn' work independently of the enable pins in lister.. button. With both check I get both buttons, uncheck pins and the zoom button disappears also.
Am I missing something?

FYI windowblinds compatibility mode is UNchecked.

Yes, confirmed (DOpus on WinXP). But I don't have SP3 installed...

I've reported this to GPSoftware.