We weren't Demon customers that early, but certainly from the point at which you had to dial a non-local number, think they had 0171 and 0181 and one in Warrington, and a bit before the release of Netscape. What did I use on my Mac? Something musical instrument themed? No, Cello was for Windows, Viola was for Unix. Hmm, maybe Mosaic but I don't think so. At 12000 or 24000 baud.