Oop, I always for get to give my specs. I'm using OS 9, G4 Sawtooth.
It used to work. Like a month ago, maybe something got corrupted. A re-install might work. Funny thing is, after it started happening in NS 7. It started happening in an old install of NS 6.2!
My solution: Internet Explorer.
IE works great. Maybe I'll give Mozilla a try too.