The toolbox in Visual Studio Professional 2008 has somehow ended up with 12 instances of each control. They are just the standard controls, no third party controls, and I have no third party plugins.
Is there a way to rebuild the toolbox to correct this issue with the dupes? I've been living with it for a while, but it's pretty annoying.
Did you try right clicking the Toolbox and selecting "Reset Toolbox"?
That should reset it to the defaults.