Dear Guys,
I can now say that I have all working with no problems so far on both machines. After much frustration on our bigger unit I re-installed EB and played for some time. Then I installed the patch 7.3 and played it for some time. Finally just about 241BC I installed the hotfix and to my surprise, no crashes and so far no problems. This was how I did it on the first machine with no problems so perhaps installing seperately might just work for others as well.
Yours,
basics.