Oracle Forms

Hello ,
I have ORACLE 10G & Forms 6i on Windows server 2008 . When I open the forms for some work , it give me error in few minis.

FRM-40655: SQL error forced rollback: clear form and re-enter transaction.

I have not done anything unusual in form design. it was working properly from a long time.

Yesterday i set the default profile to idle_time = 20. Will that make any problem ???

I checked my Alert Log but no sign of any deadlock in it, or any other unusual activity ....

What is the solution ???

Thanks in advance ..

Edited by: DBA4 on Jul 17, 2010 11:43 AM