Hey...
One would first think that either your computer is small and out-dated...
Then might wonder what the "virtual memory" is set on the machine...
Have you set yor virtual memory as high as possable?
Go into the "Control Panel"...
Then click on "System"...
Then click on "Advanced"...
Then find the "Performance / Settings" button and click on it...
Then click on the "Advanced" tab...
Then click on the "Virtual Memory / Change" button...
Then look at and read that info and MAX OUT THE VIRTUAL MEMORY !
That might help...
Good Luck...