I am using PM 4.6.1. on a WIndows Vista 64 (SP1) bit system. When I toggle from viewing JPEGs and RAW files combined to separatly, using Crtl+J, the thumbnail that I am viewing will likely not be on the screen afterward, unless I am near the beginning of the folder. It will still be highlighted, but requires scrolling down to view it. This does not occur when combining teh view again.
This is a minor annoyance, but it would be a nice fix, if it can be done.
Mick