Cheers Danny, that's a lot of help, Yes I am making a DAW and I had a brilliant install that I have been using for the past two years with Leopard 10.5.8 - flawless. I'm just getting ahead of myself and trying my hand at Snow Leopard.

I use a MOTU 828 mkII which has Apple Mac drivers so works like a charm, you get plenty of inputs and outputs to record live and 2 dedicated guitar inputs. Works beautifully and a very reliable piece of kit,

I haven't tried the Auto Patcher yet I was using DSDT Patcher GUI which I downloaded from another website. I couldn't really see the difference that it was doing as nothing much changed except that it was booting and shutting down without errors. but then all the drives would change to orange like they were external HDDs - I thought I was close a few times but with the issue of 2 nVidia GFX cards i kept getting knocked down!

I'm really thinking about going back to 10.5.8 as I had everything working the way it should. Plus the fact that Logic running in 64 bit has a few issues when I was using 32bit plugins (Logic uses a 32bit bridge when in 64 bit mode) so they totally went nutty.

Im going to try Snow once more, and if your methods work I owe you a drink!

Cheers for the help bud, much appreciated

D.