I'm getting this message when I click start at the BTCGuild GUIMiner (last version, just downloaded from the mining pool website): "NameError:globalname 'GetLastError' is not defined". I'm using a Sapphire 7970 (11197-11-40G), and I have installed all 4 drivers files from
http://www.sapphiretech.com/presentation/downloads/download_index.aspx?psn=0006&lid=1. Username and Password are correct. Server BTC GUILD (US-Stratum). Device 0-0 Tahiti. Cpu Affinity 0 (ticked). Could someone tell me what may I be doing wrong?