Showstopping error in SDL Trados Studio 2014.

When I try to open Studio I get the following message "Index (de base zéro) doit être supérieur ou égal à zéro et inférieur à la taille de la liste d’arguments" in a window, and then Studio closes down.

Apparently it's a problem with Microsoft.NET Framework 2.0 and and Microsoft Visual Web Developer and in theory it can be solved by replacing code using the latter. I think the easiest solution is to re-install. Has anyone else had this problem? Is there any other solution? Thanks in advance for any help.