I would do an update for all Anti-Spyware programs ( Adaware, SpyBot Search & Destroy, Spyware Blaster, Bazooka, Tauscan, etc.)
Get Updates for and run a FULL System scan using your anti-virus program (Norton, McAfee, AVG, etc.)
Get Updates for and run your Firewall.
Lastly, consider doing a defrag of your hard drive. If XP ...START > ALL PROGRAMS > ACCESSORIES > SYSTEM TOOLS > DISK DEFRAGMENTER.
Once you are certain that your system is clean, Uninstall Hal completely then reinstall.
Check that you can view your settings in MyWebHal online and change settings as needed for news, weather, etc.
Apply changes
Start Hal and check it out.