Sql Server CE 3.5 Merge Replication Synchronization - Hanging

I am using SQL Server 2005 CE framework 3.5 and am trying to use merge replication between my arm and my SQL Server. When I run the code to synchronize, it just seems like it sits forever, and when I put a breakpoint in my code, it never skips a call to Synchronize ().

If I look at the replication monitor on the sql server, it gets to the point where it says the subscription is no longer syncing and shows no errors. So my guess is that it means sync is complete.

http: //server/virtualdirectory/sqlcesa35.dll? diag doesn't report any problems.

This is my first attempt at any pocket development, so I may have done something stupid. However, SQL Server seems to be reporting a successful sync.

Any help would be greatly appreciated as I wasted my time!

Here is my code.

const string DatabasePath = @"SD Card\mydb.sdf";
var repl = new SqlCeReplication
               {
                   ConnectionManager = true,
                   InternetUrl = @"http://server/virtualdirectory/sqlcesa35.dll",
                   Publisher = @"servername",
                   PublisherDatabase = @"databasename",
                   PublisherSecurityMode = SecurityType.DBAuthentication,
                   PublisherLogin = @"username",
                   PublisherPassword = @"password",
                   Publication = @"publicationname",
                   Subscriber = @"PPC",
                   SubscriberConnectionString = "Data Source=" + DatabasePath
               };
try
{
    Cursor.Current = Cursors.WaitCursor;
    if (!File.Exists(DatabasePath))
    {
        repl.AddSubscription(AddOption.CreateDatabase);
    }
    repl.Synchronize();
    MessageBox.Show("Successfully synchronised");
}
catch (SqlCeException e)
{
    DisplaySqlCeErrors(e.Errors, e);
}
finally
{
    repl.Dispose();
    Cursor.Current = Cursors.Default;
}