Hi All,
Managed to resolve this, saw a post in another forum and tried it out ....
Turn OFF DHCP server inside router (mine is a Linksys WAG 200G) set IP addresses on all interested machines, get network running smoothly and ping all machines, turn DHCP server back on inside router ... all works fine, any additional machines (say guests) will now pick up an allocated IP from DHCP outside of the allocated static range.
Next problem: Sleep/Hibernate .. wont Sleep/Hiber .. will Sleep/Hiber ... restart every 2 mins, wont start every 2 mins, but hangs when it returns ...... I LOVE computers