-had pxe server installed and working perfectly.
-installed the sp2 for zenworks 6.5
-lost the pxe on the server (completely gone, no more pxestart or pxestop, its like it was never installed)
-reinstall goes through the process but NEVER installs the PXE (PXE is grayed out on the install selection so it knows it was there before)

How do I reinstall the PXE server?
What does the installer know that it is already installed on the server?