Hi
Thanks to everyone who replied to my post.
I used both the Innovision drivers which are really from NVIDIA but just have their name on the file and also in display properties, and also the drivers direct from the NVIDIA website. but the problem was there with both.
I know that when you change the resolution or refresh rate and apply the change, the screen does go black and I accept that this is normal with any display card, but prior to installing XP with SP2 integrated, I had never seen the problems that I've described in my first post, even after I installed SP2 on top of XP Home.
I'v'e reinstalled XP many times prior to SP2 being released and each time after install had completed, I'd go straight to my back-up drive and install the latest drivers from Innovision or NVIDIA and never got the problems I've described in my post, so I just don't understand why it's happening now.
The problems described have only started since installing XP with SP2 slipped.
I know it's a relatively minor problem, but it's something that I don't like putting up with, especially as they have never happened before, so I'm now seriously thinking of trying out the ATI 9200 AGPx8, 256MB DDR card.
Regards