Ed,
No Problem...

You might try this if you haven't already.Try to re-register the Defrag files:
First open up a Command Prompt, this can be found at:
Start -> All Programs -> Accessories -> Command Prompt

Change into your windows\system32 directory. Your windows directory will be
either windows or winnt. Type:
cd \windows\system32

Register the defrag components, by typing:
regsvr32 dfrgsnap.dll
regsvr32 dfrgui.dll

If it works, you're good to go. If it doesn't work try what Wesley suggested
now.

Using Windows Explorer browse to your windows\inf folder.
In there you will find a file called dfrg.inf right click this file, and
select Install.

Hope this helps!
--
Regards,
Marv
Marvs Windows Tips & Tricks
http://www.marvswindowstips.com