B1DE using vb.net in debug mode

Hi

I have just used B1DE for the first time and one thing I have noticed is when I debug my code I often type in the following -

? orecset.Fields.Item("cardcode").Value.ToString

for example to check the value of a record set.

When I type this in it stops vb.net, no error message. If I display it in a msgbox in the code it is fine.

Has anyone seen this before ?

Regards Andy