Problem opening design

[jandry]

I got a strange PC on 2 PCs. They have Windows 200 SP4, Visual Studio
2003 and Framework 1.1.
We are doing asp.net with vb langage.
When I try to open design, even after recompiling solution, I got the
message "The class file 'page.aspx' specified as the codebehind for
'page.aspx.vb' could not be loaded. Make sure that the codebehind
attribute in the page or control directive properly references an
existing code behind file."
My solution is working well on other PC, the codebehind is correct and
the project compile and execute correctly.

More over, in the solution explorer when you are on the vb file, click
on the design icon, the previous message appears followed by this
french message :
"Aucun éditeur disponible for 'c:\inetpub\wwwroot\page.aspx'. Vérifiez
que l'application correspond au type de fichier (.aspx) est
installée."
in english something like :
"No editor available for 'c:\inetpub\wwwroot\page.aspx'. Please verify
that your application for aspx file is installed."

I try to do a new empty solution,
I try to repair Visual Studio 2003,
I try to uninstall and install newly Visual studio 2003 and framework

but the problem still there.

Please help I have no more idea except reinstall the whole PC.