i have used Win Rar 2 extract the demo of SS2 from CD. I unzipped it using Win Rar SUCESSFULLY! I even used "test" option in this software 2 know wheather it is a currupt. but it told me that it was not curropt copy. now, when i double-click the icon of unzipped demo, i get 2 ERRORS 1) "the PSAPI.DLL file is linked to missing export NTDLL.DLL:NtAllocateVirtualMemory." 2) "C:/ Serious Sam 2 Demo.exe A device attached attached to the system is not functioning."