We are having a serious issue that is causing a group of our users to get a Windows error to be thrown that is kicking them out of our application.  When we look at the dump of the error we see the following:

From watching the recordings of the users it seems this might be happening if they are having some network slowness and click multiple times on an object or maybe click on menu options that are behind a screen being generated.  We are not 100% sure yet exactly how to duplicate but hoped that someone might have seen this issue before that might have some ideas.

Our application is accessed via Citrix Windows Desktops using thin-client technology.

Thanks, for any help.