My computer runs low : system 36%, User 36% GDI 45%, which I don't really understand, except sometimes I get the message to close some programs or the computer will stop. Closing programs does not help, and I usually have to restart it, but shortly thereafter I have the same thing with the Resource Meter. Do I need more RAM - have 160 or more GB...have 2.99 and using 1.48, or do you have any other suggestions? Thanks!