A few days ago I installed Visual Studio 2010 on my new laptop. It installed everything needed for .NET, SQL, etc. I've been working with it since then with no problems until today. This morning my data source connections to sql databases via asp.net controls worked fine. Suddenly this afternoon it quit working. When I try to connect to my data source via asp.net controls (e.g. gridview) a "Program Compatibility Assistant" popup box informs me that there are compatibility issues with Microsoft SQL Server (2008 and 2008 R2).
I get the same error message from the SQL Service Installation Center if I select "System Configuration Checker". Trying to run sqlservr gives me the same error. What on earth is going on here? Everything worked fine this morning. I did not install anything new since then. I did not attempt to update anything at all. Suddenly it's just all broken. Please help. I'm completely baffled here.
I navigated to here: C:\Program Files\Microsoft SQL Server\MSSQL10.SQLEXPRESS\MSSQL\Binn
The properties for sqlservr indicate that it's version 10.0.2531.0
According to a table I found online, that's 2008 Service Pack 1. I don't even understand where all these references to 2008 R2 I'm seeing are coming from. According to this version number I don't even have R2.