Bugger, I was using nt40 - but I must admit to being a tad confused here. I know that Lightwave has copy protection in the form of sentinel drivers and a dongle. But the demo version kicks in a dongle isn't detected. I now that of at least one guy that's got it to work, I can only guess that he has a full version, dongle an' all. Ho hum. It was worth a try. Thanks.