Hi Rennie,
Thanks for reporting this. I think I've replied to this but the reply was probably lost in the old website comments.
The number of rows displayed in the Manage Icons window is calculated to display as many icons as possible according to the size of your window. If, for any reason, Windows returns an incorrect size value to QAP (or QAP interprets incorrectly the info), the window could be too small or too large, possibly making it unusable. This is probably what's happening with the hires screens. Also, the tools I use does not allow to add a scroll bar on dialog box with list including multiple images as this one. Sorry for that.
The solution, then, is to set manually the number of rows to be displayed in the Options dialog box, Menu tab, in the Manage Icons window row.