thanks so much Trav, I think you have saved my sanity. I have had so many problems after installing a 512MB stick along with my existing 128MB in Win98Se and Poser that I was ready to just wipe it all and start again. I am going to give this a go and will let you know if it makes a difference. I also found out recently that Win98 doesn't handle large amounts of memory very well so it would seem to be a perfect match (in theory). I was starting to think that it was only a small group of people that were having freeze probs in poser until recently. :))