SQL server2005 express table is not updated with vb project

Hello

Hi am new to this and from Belgium so sorry for my languish

I gave build an simple VB 2005 express program with 1 form and a few textboxes bound tot data in a SQL sever 2005 express database. The database just has 1 table Customers with en customerID as primary key, Name and Last name. When I run my project everything works just fine. I can insert en add new customers en even delete them.

After I push the save button on my form my program even tells how many rows ware affected by the update.

Now after I close the program and reopen it nothing has changed in the table, no rows added or deleted the table has not being updated.

What is wrong

If edit my table in the database explorer (in vb2005) the table is updated correct.

Can any wan help my