I do not think you need a virus protection on your Droid
Really? I also have advanced task killer installed b/c "they" say it slows down the Droid and uses a lot of the battery - if apps or programs are running in the background. Mine is just a stock Droid (not rooted) with OTA updates and I'm fairly new to Android so I'm not really familiar with the needs of certain apps. I would like to root it someday but don't really know how and am a bit nervous I'll screw up my phone and have to get a new one... Boooo.
Forgive your enemies it messes with their minds!
Task Killers are not needed, Android handles tasks very efficiently and third party applications that claim to do the same add confusion to the system causing lowered battery life and slow system performance
Thanks Mike for posting the link
O/P uninstall Lookout and your Task Killer - Reboot your device and then give Handcent a shot...whether it works or not the Task Killer should not be reinstalled - hopefully it solves the problems though