VS .NET 2003

So, am I the only one totally frustrated with this?  We are building a Windows Form application and  went from MS VS .NET to .NET 2003 last week.  The application loads and runs fine.  However, the IDE is crashing all over the place.

It takes approx 2 minutes for our solution to open; used to take about 10 seconds.  Forms drop controls on Builds and of course the compiler throws Build errors when they are missing.  We can 'hack' at it for 10 minutes or so and will finally get a clean Build, then, next time, same thing. 

We can build one project and get a successful build.  We can then build another project that references the successfully built project, and suddenly, controls are missing from the successfully built project!  Sometimes, if we check out the project from VSS, we can get a good build.  Sometimes, if we close the Solution and re-opn, we can get a good build.  Other times, we hack for 1-2 hours and finnaly, without changing any code, can get a good build. 

This is happening on projects that contain window forms (SubType = "Form") only, ones that have not been modified in months.