Hi, I found at this thread that I can type in the following command in terminal to completely stop webpage previews being generated:
defaults write com.apple.Safari DebugSnapshotsUpdatePolicy -int 2
I think everyone on that thread is running 10.6 and, being a Terminal noob (in both senses of the term), I'm hoping this line will also work for users on 10.5.8 and running Safari 5.0.4?
It was what I used on Leopard, so it should do what you want.
Great, I may try it in the near future. Thanks!
Retrieving data ...