Fabio,

Be realistic. :) You wouldn't close cursor that is the RowSource of a list in DropDowbn Event and expect no consequnces, would you?

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>>Your code below demonstartes more bad programming practice than a bug. The RELEASE POPUP pp_st command doesn't belong in DropDown event and removing it eliminates crash.
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>This is true, but on a fully managed environment like VFP, to crash it does not have to never happen.
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