Does the "Application Name" in the ConnectionString section need to be the same as the "Application name" in the Membership provider?
<connectionStrings>
<clear/>
<add name="SqlServerDbConnection" connectionString="Data Source=(local);Initial Catalog=GalleryServerPro;Integrated Security=true;
Application Name=Gallery Server Pro"/>
</connectionStrings>
<membership defaultProvider="SqlMembershipProvider">
<providers>
<clear/>
<add
applicationName="Gallery Server Pro" minRequiredNonalphanumericCharacters="0"
minRequiredPasswordLength="5"
maxInvalidPasswordAttempts="50"
enablePasswordReset="false"
enablePasswordRetrieval="false"
passwordAttemptWindow="10"
requiresQuestionAndAnswer="false"
requiresUniqueEmail="true"
connectionStringName="SqlServerDbConnection"
name="SqlMembershipProvider"
type="System.Web.Security.SqlMembershipProvider"/>
</providers>
</membership>