xClient process consuming CPU -- what is it? Basic question, I can't find anything on Google about it. There's a process that keeps my fans spinning, and consumes about 80% cpu.

xClient -- what is it, or how can I find out more about it?
Open Activity Monitor and sort by CPU. Then select the item and click the information icon (circle with a lower case i)

Then you can see all the open files and ports. That should give you a ton of system files that make no sense, but you should get a path to the file or some details to post if you can't figure out straight away where it's located and what files it's reading. (Worst case upload the files to a GitHub gist or pastebin and link to me in the comments below)