Report not showing in reportviewer, just vertical grey bars.

I created two reports, one in Microsoft reporting services and the other with crystal reports.  I use the same dataset to pass to both.  The Microsoft report displays fine, the crystal report viewer however just displays a pattern of vertical grey bars (see at bottom).

My code is below:

OdbcConnection conObj = newOdbcConnection("");

conObj.ConnectionString =  @"Driver={Microsoft Access Driver (*.mdb, *.accdb)};Dbq=C:\webDev\test.accdb;";

conObj.Open();

String sqlStmt = "my select statement here: removed on purpose";

OdbcCommand cmd = newOdbcCommand(sqlStmt,conObj);

OdbcDataAdapter da = newOdbcDataAdapter(cmd);

testData ds = newtestData();

da.Fill(ds, "CMR_testData");

// record count is showing 2 records

int rc = ds.Tables["CMR_testData"].Rows.Count;

CrystalReport1 oRpt = newCrystalReport1();

oRpt.Database.Tables[0].SetDataSource(ds);

CrystalReportViewer1.ReportSource = oRpt;

CrystalReportViewer1.RefreshReport();

conObj.Close();

Here is what I see:

Hopefully someone can shed some light on what I am doing wrong.

Thanks,

Garth