Actually, connections to the database, and objects are cleared up automatically when the page loses it's scope..... however, manual clearing up of objects and closing connections is always good practice because you release the resources when they are done with.... which could be well before the page finishes proccesing.
Many pages can access the database at the same time unless your connection string specifies an EXCLUSIVE connection, which aint gonna be the case.
Seems as though you have an error prolly caused by your
SQL statement or some object being used wrongly.
Smokie..... I reckon he prolly has an
HTML capable phone.