XP slowdown

I have a couple of Windows XP problems that came up suddenly and simultaneously, so I'm thinking they may be related. The first happens when I'm doing a Save As and click on the address bar (or the arrow next to it) to navigate to another folder. I click on the arrow and it takes 10-15 seconds to drop down. This seems to happen only with Microsoft programs. The second is a delay when I right click in an open window and go down to New. Pretty much the same thing happens - a delay of 10 seconds or so. I'm running XP with SP2. Anyone have any ideas?

Thanks.

 

Thanks, but no luck

Thanks for the info. Unfortunately, none of these three really describes the problems. My computer does not experience high CPU usage in either case - it stays around 1-3%. There is just a long delay.