It's a little difficult to help without knowing what version of ArchiCAD/PlotMaker you're on, but I assume it's version 9.
Having said that, your views shouldn't just update by themselves. When you open the layout book, PlotMaker should prompt you with an Update Drawings' dialog. Make sure you don't select 'Update All Drawings' chosen, instead select 'Go to Drawing Usage'.
You can use Drawing Usage to select the drawing you want to update. At the bottom of Drawing Usage you can manually switch a view from to OK if you don't want to update it.
If you're on ArchiCAD 10, you can set the Update Type for each individual drawing to either Auto or Manual in the Drawing Settings.
Cheers,
Link.