I HAVE FOUND THE ANSWER!!!!!!!!!!!
what Ithink has happened is that you have set the possessor to adjust to the background apps, not programs.
what you need to do:
- go to your version of this: Control Panel\All Control Panel Items\System
- click on change settings in the 'Computer name, domain and workgroup settings' section
- go to the advanced tab.
- there is a button under processor scheduling (near top) that says 'adjust for best performance of: Programs or Background services.' select Programs.
This should fix it. When i restarted my PC it went back to Background tho :( just remember to apply it