error working with fluent
 

hello friends,i encounter an error while i want to solve same geometry with different boundary conditions (just changing the inlet velocity magnitude),it works well at first but after 2 or three modifications it stops and shows the error.i am using win 7 in an asus p52jc laptop and fluent 6.3 .

Error: Error closing file

Error Object: ()
Error encountered in critical code section

Hit return to exit.