Export problem, application freezes

[BS]

Hi,

I have an application which programatically exports a number of reports all
of which are modal. When the export is carried out it is successful however
my application then freezes. and then has to shut down via windows task
manager.

When the reports are non-modal, they export normally and my application
continues to function normally.

The reports have to be modal in order to interact with JAWS software which
requires a particular window class to interact with my application correctly.

Any ideas?

Thanks,

Bernard