I had the same problem. My computers a bit old these days, a pentium 3 450 with 320 meg of ram, Im also on windows 98. The only way I could render it was to reduce the size of the texture maps. There so big and detailed it didnt seem to make much difference to the render. I'm saving for a better system until then I don't think it worth me getting poser 5 because I get a feeling that will really kill things.