Slow Loading with Files (AVI)

[Jonny]

Hi,
When I try to load an AVI file (or any other) in Win 2000,
the computer seems to sit there and do nothing for 10 - 20
seconds, then the HDD lights starts going, and the file
loads and plays fine. This happens for each file on a play
list.
Also when I try to use Save in internet explorer, Photo
editor - pretty much anything which allows saving, it
takes a long time to display the folder contents (about
the same as above) I have a 120 GB hard drive, and it's
about 18 GB free. Any ideas (have run NAV 2004 updated
over it, and ad-aware - no change)
Thanks

 

[Jonny]

Also,
Checking task manager shows nothing really using too much
CPU or mem during this pause period - only system idle
process. I am stumped - I have defragged - and it was 25%
(oops) but now that it is defragged, still has the same
issue. Any help greatly appreciated. Thanks