This problem has been ongoing for over about a week now and although I have a workaround I don't have a proper fix. What is happening is that when I try and add a form (or component) to an existing form I get the error

Not the most helpful error ever put out by Microsoft ;-) Looking this up on the internet revealed a horror story of largely unsolved problems ending in a re-install of VS.NET. I really didn't want to go there. The main links I looked at were:
I can't say re-installing VS was top of my
Want To Do List so I managed to come up with a compromise.
- Create a new Windows Forms project.
- Save the form created by this project into a common folder
- Add this form into any new projects that require a form adding
- Save the added form into the current project folder.
At least this means I can continue to develop VS.NET windows forms projects without having to re-install VS.NET. If anyone has a permanent fix please let me know !
EDIT: After posting a link from the vbCity thread back to here with my solution, GP, posted back with a solution so cunning I could clean my teeth with it :D Why not just add a class to my projects (which works) and use the Inherits Form
statement? The class shows up in the Solutions list as a form and can be coded as such. Many thanks George.