http://www.theregister.co.uk/2008/07/09/ms_dns_patch_zonealarm_woes/
Woke up this morning with no internet thankfully the brilliant support of Zen internet provided in seconds (an automated message as you phone the hotline) that the most probable cause is the latest Microsoft update.
ZoneAlarm has published a list of recommended workarounds to dealing for the glitch here.
all i gotta do now is wait till i get home and try to fix this