[r2924] Time lag on pak selector dialogue window

[z9999+]

When I start simutrans and pak selector will appear.
I click one of buttons but it takes about 2 seconds until button image changes to pressed and before start loading pakset.

This happened not always but mostly happened. And this problem didn't happen before, but today and yesterday trunk version have this problem.

[prissi]

Sorry, cannot reproduce this. Maybe calling a windows function in the meantime is scheduling something more demanding? The pakset dialoge should be not affected by any recent changes.