Download Visual Studio .NET 2003 SP1 and all of your troubles will be behind you. Well maybe that's too much to hope for in a Service Pack, but this one has fixes for "Stability Issues" and "Security Enhancements" as well as other goodies.
Here's some links for ya:
Link to Download details: Visual Studio .NET 2003 SP1
Link to the Release Notes: Detailing all of the changes, installation notes and "known issues."
~ Robert Shelton