I am encountering the same problem of tiny icons in Windows 8 Pro if display is set to anything other than 100%. With Windows 7, icons were fine if custom sizing was set to 105%. But not with Windows 8.
Not all icons are affected; just some of them. I haven't yet figured out what the common factor is to icons that come out the correct size vs ones that don't.
Decreasing screen resolution is not an option. Nor do I want to adjust windows elements individually--things end up not fitting exactly when I do that.
Is there a way I can make the icons display properly in ObjectDock? If I had to create custom icons, I could do that.
Any help would be appreciated.