Hello,
Some users have reported that they use SpySweeper or SpywareBlaster and shutting them down solves the problem. ZoneAlarm might also block the global hosts. If you go to Firewall in ZoneAlarm on the left and then the main tab in the upper right then go down to the advance button and click on it you will see under General setting "Lock Hosts file".
Further please try the following:
Open Spybot > Immunize > under Windows uncheck Global (Hosts). Go into Spybot > Mode > Advanced Mode > Tools > Hosts file > and then click on the "Add Spybot S&D hosts list" button. Go back into Spybot > Immunize
The problem that not all global host entries have been immunized has also been discussed in our forum:
Can't immunize some items
Immunize won't do all - Global (Hosts) not complete
Cannot immunize 6370 Global (Hosts)
Best regards
Sandra
Team Spybot