Another prob

[porshiepoo]

Restored the puter yesterday due to it going berserk. Everything was fine until just now when Antivirus XP seems to have shut off my Firewall and won't let me re-start it without buying a package.
It's now stopping me from using the internet as it says I'm infected.
What do I do?

[dx100uk]

as advised download and run http://forum.caithness.org/showthread.php?p=692635#post692635


dx

[porshiepoo]

Have done it. Yay, all fixed. Cheers