Vista - multiple sidebar.exe running

we have been trying out the sidebar feature and using custom gadgets
downloaded from the marketplace (multimeter,dopplar, and such) and have
noticed a peculiar behavior. Whenever a gadget is added to the sidebar
another process is started that uses near identical ram on the pc. ie in task
manager two sidebar.exe process showup both using 40+ MB of ram. if we kill
one. the sidebar will stay there and the just the downloaded gadgets close.
Is there someway to stop this? Or perhaps a better explanation as to what
the default behavior should be so I can further troubleshoot it.


Thanks