I know that this configuration isn't supported by Landesk.
It's not possible for me to have in all of my sites one DHCP server and another PXE.
Having DHCP and PXE is working on 2003 servers so i don't understand why it doesn't work on 2008
I've tried with PXE on my laptop instead of DHCP server and it doesn't work.
The computer on witch i do these tries is booting well on PXE when the DHCP server is 2003 server even if they are the same.