Not a new problem, but it cropped up as I was running a search and creating a tag for a Clipping. I sent an email to 'testing' with Profiler log and Logos log, with the same subject as this thread.
The CPU problem started with previous session when I was doing a Basic Search and created a tag for my clipping. The indexing seemed to be using a lot of CPU but the heavy CPU occurred immediately after a restart when the Search was resumed from my layout. Menus appeared in the top left corner of the Logos window. Everything was sluggish. The CPU went down after I stopped the Search (for Heart) and the menus went back to normal.