It depends on the server, but there is an option that you may have opted out of. I think it was something like cl_allowdownload 1. --- Could be worse, they could have been American givers and you would have been smothered in small pox. -fakenamefignuts on Indian-Giving. Steam ID: electroflame
It's almost certainly the server's fault. The game does auto-download the maps, but most servers specify a separate webserver to download them from in order to give you a reasonable download speed. if the map bz2 file is not on that server, then you get that error. --- FACT: Four out of five people are crushed to death by giant diamonds every day.