Screen refresh on sizing from taskbar
 

A mini-bug for you. Version Beta10a T511.3.0.1861
Running in XP in a window. Normally if I re-size the window by dragging on releasing the mouse the image adjusts to correctly display the aquarium at the correct aspect. If however I re-size the window using Tile Windows Vertically/Horizontally from the task bar this mechanism does not kick in and the correct aspect is only restored if I click on a corner of the window as if re-sizing it. Obscure I know!

Regards, Dave

I'll look into it, but I'm not sure that's something within my control.