Oracle forms in APEX problem

Hi all,
I have called oracle forms into my oracle apex application through iframe but having few problems.
Sometimes oracle forms in iframe region got stuck and then not work any more and if I logout from apex and login again it still in that stuck position.
I don't no what to do now.
I am thinking that it is reading from cache and i tried to close browser and clear cache and then login it still in that position.
I want that whenever oracle forms are called it, does not read cache and run from scratch.
Any solution guys.....
Thanks

You should check this link:
https://apex.oracle.com/pls/apex/f?p=31517:95
Denes Kubicek
http://deneskubicek.blogspot.com/
http://www.apress.com/9781430235125
https://apex.oracle.com/pls/apex/f?p=31517:1
http://www.amazon.de/Oracle-APEX-XE-Praxis/dp/3826655494

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