ReportServerDatabaseUnavailableException error, not using Report Service in current projec

I just installed Report Services, and now, in a project I've beenworking on for months, I'm getting the following exception, and I'm noteven using Report Services in the project, and don't have a referenceset to it or anything!?!?
Has anyone seen this behavior before? How do I stop it? I don't wantReport Services running all the time on my poor lil' laptop, given thatI don't need it right now.
Exception details:
An unhandled exception of type'Microsoft.ReportingServices.Diagnostics.Utilities.ReportServerDatabaseUnavailableException'occurred in microsoft.reportingservices.diagnostics.dll
Additional information: The report server cannot open a connection tothe report server database. A connection to the database is requiredfor all requests and processing.

Thanks,
Sam
Which version of .NET Framework, SQL Server and Reporting Services are you using?
Also, I'm not sure if this will fix your particular problem but since you haven't created any reports it is safe to do:
Open a command prompt at this location "C:\Program Files\Microsoft SQL Server\80\Tools\Binn" (replace 80 with 90 for SQL 2005)
run the following: RSKeyMgmt.exe -d