Multiple windows opening cascaded automatically

Hi All,

I have an application where on an user action multiple windows are opened  simultaneously.

Currently what I have observed is when the Form's start position is given as CenterParent; the windows opened are cascaded automatically in Windows 7 but in Windows Server 2003 or Windows Server 2007; they are not cascaded.

Could you please help me out understand why this is happening and how I can resolve it?

Thanks in Advance,

Manikandan