well, I am downloading all the GWX files again. Slow because my ISP cripples the bandwidth in the evening if a user downloads too much, and I have already downloaded this lot today - but I have checked the md5 on the .exe and the first .bin and they ok ( thanks Ref for that advice, really useful), so i am hopeful it will be ok next time I go through the procedure. Won't be playing any games tonight though...