Have been using every version of PS thru CS6, now with CC. When right clicking a photo to open, I get ui.dll error saying to fix re-install. Checking ui.dll in LR 5.6 it says it is 3.53 MB. Have gone through try ing to fix it with 5.5 ui.dll, one I get when trying to find one to change in X64 folder, re-naming one found in original folder to ui.dll it doesn't work. HOW do I get it to work as it did in ALL versions before?