Windows 8 - very small toolbar icons

The toolbar icons in DraftSight are very very small (hardly visible) compared to the text which looks normal - compared to when I installed it on a Windows 7 computer. If I choose the option large icons they are still very small and its almost impossible to work with them. Why is this? (All other programs looks great on the computer).

I am considering buying pro but I wont until I have solved this problem. Anyone who knows how to solve this problem?

Sorry if I post this in the wrong place. Thanks.