ORCAS March CTP Db Providers Problem

I had a weird problem today in my working machine, I have .net 3.0, VS 2005, Sql Server 2005 Client tools, and I decided to give VS Orcas a try, so Meligy downloaded the bits from microsoft (VS Orcas March CTP), and I install it, and two days later I found out that Sql Server gives me this exception when I try to access database object (table, view, diagram ... etc)