Purchase Order form hangs on Ax 2009 Client

Hi All,

We have a problem on one of the test Servers where the Purchase Order Details form hangs for a while with white screen and never responds. Rest of the screens work as usual. Could you please let me know what are the options to know what exactly the proble could be ?. We looked at the database and the DB is performing well. Any logs that can be written to see the problem ?

Thanks in advance

Any modifications you can remove?

have you modified any code recently if yes, let us know what code you have return. so that you may get better solution.