See if line 157 helps:
http://www.kellys-korner-xp.com/xp_tweaks.htm
--
All the Best,
Kelly (MS-MVP/DTS&XP)
Taskbar Repair Tool Plus!
http://www.kellys-korner-xp.com/taskbarplus!.htm
"Blach" <(E-Mail Removed)> wrote in message
news:4D21FCC6-7B9A-4285-AEE5-(E-Mail Removed)...
> Every time I right click on a program icon on my desktop (using Windows
> Vista
> Home Premium edition), the entire desktop screen flashes only showing the
> background picture and after a second they all re-appear back on the
> screen.
> I used to be able to right click on a program and it would give me a list
> of
> options such as open, print, send to etc but I can only do this now on
> items
> such as word docs, pdf files etc on my desktop.
>
> I've also noticed that if I open User Accounts within the control panel
> and
> select either 'Configure advanced user profile properties' or 'Change my
> environment variables' on the left hand side, the window closes and the
> screen flashes as above before re-appearing a second later.
>
> I don't know if both are linked to each other except that in both cases
> the
> screen flashes.