Windows 2008 can not be booted in vmplayer 5

Hi All,

I used vCenter Converter to copy Windows 2008 R2 to target machine.  Target OS is Windows 7 64 bit.

The conversion was successful.

Then I tried to start Windows 2008 in Vmplayer 5.  A black screen appeared and gave error "operating system not found".

So I tried to start virtual machine and entered its Bios setup.  I were able to find "Hard Drive" and "VMware Virtual SCSI Hard Drive (0:0)" on the top of the list.

What could be the cause of "operating system not found" error?

Thanks a lot!