Intel Boot Agent 1.5.xx hangs during PXE

Hello,

All PCs shipped with Intel Boot agent 1.5.x hangs just prior to the boot menu

Altiris, inc. X86PC PreBoot, PXE-2.x Enhanced
Build ID=402

It does not seem to be manufacturer related, as Lenovo, HP and Dell computers have the same problem.

Does anybody have a solution, an official statement from Symantec ?

kindly regards
Hans Nitsch

Hager Group
running DS 6.9 SP4