Dump in the SM30

Hi

I have created one Z table and assigned table maintainance transaction. I have entered some data into the table. When i tried to scroll or Page up or Page down to see the data it is going dump saying

What happened?

An internal error occurred in the program "SAPLZWIP_SETTLEMENT" while the

program was

trying to transfer output fields to the screen 0100. As a result of this

internal error, the program cannot continue executing.

Can any one help me.

Regards

John