John,
Spyware can cause this and you may have it. One in particular is "
spyware.Apropos C."
Read over this site and download aproposfix.exe
http://www.dslreports.com/forum/remark,14679793
Note: that the utility referenced above removes a Malware responsible for
blank Device Manager.
--
All the best,
SG
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"John" <(E-Mail Removed)> wrote in message
news:516DF0FF-EAF4-4A4F-934C-(E-Mail Removed)...
> My Device Manager is blank. I just get a blank window when opening it
> (not a
> single device is shown).
>
> I tried clicking on START, RUN, typing services.msc. But the plug and
> play
> are already on automatic.
>
> I'm running WindowsXP Home Edition. Any ideas?
>
> John