Ah, found some help on Ars...
First, there's an uninstall utility <a href="http://www.lop.com/uninstall.exe">thoughtfully provided</a> by the evil little portal itself.
You might also have to search your registry for http://www.lop.com
and delete or replace it with http://www.google.com
Someone over there also recommended disabling ActiveX controls entirely (once you've installed Flash and whatnot). How often do you use ActiveX controls, anyway?
Here's a test to see if disabling ActiveX is right for you:
<b>True or false.</b> You have said something like this in an AOL chatroom:
<font color="red">HOT_SKATER3481:</font> <font color="blue"> ooh teh comet cursar is raelly cool!</font>
<font size=-1>[ This Message was edited by: pellmell on 2002-03-26 15:14 ]</font>