Hi Jennie,
Welcome to this Microsoft Project newsgroup
We'll need more explanation from you. When you say "program of works" do
you mean separate projects? Which view are you looking at that have red x's
instead of charts. Which version of Project are you using? Have you
applied any Service Packs?
FAQs, companion products and other useful Project information can be seen at
this web address:
http://project.mvps.org/faqs.htm
Hope this helps - please let us know how you get on
Mike Glen
MS Project MVP