cannot access dataset.datarow with tableadapter

I rarely post and I am fairly new to C# and programming in general, but I am having an odd problem that I cannot for the life of me figure out.  I have a very simple test database with one table that contains two records.  It has two fields one primary key that auto increments and one field of type nvarchar(50).  I add the dataset using the wizard (many times and other ways too).  I have selected my tables and they show up in the designer.  Here is the code from Main:
testDataSetTableAdapters.testTableAdapter tta = new testDataSetTableAdapters.testTableAdapter();
testDataSet tds = new testDataSet();
tta.Fill(tds.test);
//Here is where the problem is - when I try to access the row to get a new row "testRow" is not available from
//intellisense as it seems that it should be:
tds.testRow // - This is not available
//Therefore I cannot create a new row to insert.  Fill, Update, etc are there and working.  The "test" table is there but not testRow.
If I remove the tds.testRow the application runs and in debug mode I can view the table and see the data in it, so I know that the fill statement is working correctly.  I have run essentially the exact same code on another computer without any problems. This computer is a Windows Vista 64 bit computer running VS2010 Express.  I tried setting the CPU setting to Any CPU as this sometimes cures some problems on the 64 bit computer.  I have looked everywhere for a solution.  One thing that seemed odd to me is that the "testRow" exist does exist in the dataSet.  If I type:
ConsoleApplication1.testDataSet.testRow //Intellisense recognizes this.  so the command is there.  It just does not show
up for my "tds".  Any help or suggestions you can provide are greatly appreciated.