URL giver script not working for me

[Emilia Cornwall]

I have a number of objects that give out URL's to folks, and they seem to be working for others but not for me, the owner!  I click and NOTHING happens.  No popup to invoke a browser at all.  In Preferences, I am unable to move Enable All Pop Ups to Always Show....it won't let me.  My Web Browser pop up setting is good, and it gives me that when I click a link provided in chat; however objects with URL giver scripts just won't work for me.  Any suggestions on what might need to be re-configured?  This is a new issue for me, and it is consistent across several viewers from SL v3 Beta, Firestorm, and release SL viewer.