Good news guys, this a.m. I have been able to access Symantec and down load Intelligence Updater. So now fully up to date and protected all round with extra protection with activescan and trendmicro, both of which work much faster than a NAV scan.
I have a suspicion that after reinstalling NAV you cannot do liveupdate or manual update until you perform a complete scan, I tried to bypass this as it is so slow, and I was confident I was clean.
I trust you have sorted your probs finally amofw.
Cheers everybody and thanks for all the help.