We just received a large shipment of HP Compaq 4000 SFF desktops. The Intel e1000e network cards in them were not recognized by the PXE boot (even after we used the March 2011 Imaging Drivers update.) We did some checking and found that the "newid" parameter for these cards is "0x8086 0x1525,e1000e". I thought I would let everyone know in case someone else runs into it. Maybe this can be added in the April Imaging Update?