Thanks for the information.
I may try the suggestion, but my experience with the MRU, at least in pt lite, was not good, as I found out you have to be careful because you will lose some settings/functions in some programs by deleting them.
ccleaner just has a better (easier) option because it has a seperate catagory for MUI CACHE. You can actually scan it seperately.
I'm not degrading Power Tools, the more I use it, the more I like it and am getting used to it, but being a novice, some things are just easier in other programs. Power Tools is a very thorough and complete program though, it seems.
Just an observation from a newb.