Problems Access Violtions Adoquery

i was experimenting with ado and have come across the following problems:

i've two forms one of which is a main form and the other is a form containing the adoquery1 and grid to display the results of a query.

On running a query and displaying the results if, i close the second form containing the grid and adoquery1,while the query is still running i get a error saying that i cannnot perform the operation an a closed dataset and futher if a say ok to the message it givies me a read address exception error.

i have traied to trap the first error about the dataset but the second error about the read address givies me problem.

You advise is much appreciated in this problem.Why do you want to close the second form while the query is still running?