installer launching every start up

From: yvonne jacklin (anonymous_at_discussions.microsoft.com)
Date: 09/24/04 

Date: Fri, 24 Sep 2004 02:41:29 -0700

I recently had to deinstal and reinstal my print driver.
Since then every time I start the PC the windows
installer window comes up, performs some activity and
closes. The PC runs OK but I would like to find out what
causes Installer to open and how to stop it. Any
suggestions?