When I enter a phrase in the FIND WHAT box and a different phrase in the REPLACE WITH box then press REPLACE ALL, only [u][b]ONE[/b][/u] occurrence gets changed. The only way to change [u][b]ALL[/b][/u] occurrences is to first do EDIT/SELECT ALL then press REPLACE ALL. What am I doing wrong?
I don't believe you're doing anything wrong. I've noticed it, too. It seems to happen intermittently, and I haven't managed to determine exactly when it happens. Sometimes if you just repeat the replacement without closing the Replace dialogue box it behaves correctly.