OK...Thanks everyone...Nice to know it's not just me and my machine....
Dave....Quite true - using Firefox it isn't quite as bad as IE but PPRuNe is still not as ' stable ' as other sites....But I do tend to avoid using it as I have had two fairly nasty hijack viruses ( Viri ?? ) which got through Firefox....
Worst of all, though, is the Daily Hatemail Site which just seems to hang every time on both browsers - probably just far too much content on a single page + embedded videos....Just hope PPRuNe doesn't get as bad as that site one day....