Okay, I've done something to my PC - don't know what
but now it won't let me have more than one window open at a time. As soon as I try opening a second window the first one closes automatically
So this is a plea to anyone who know what I've done and how I can sort it, 'cos if i don't sort it soon I'm going to lose my temper with it and it might end up finding a another type of window - to throw it out!!
thanks in advance