[@AlomWare] Paul – thanks for the offer of emailing you, if I get time tomorrow I’ll try a safe mode installation, otherwise I’ll do it asap. If that fails I’ll try the installation on a different computer, we don’t have another Win 7 Pro 64-bit one at home to see if it is this particular setup, rather than the OS, that is the PC I’d really prefer to put it on. I’ll email you soon on this, thanks again.