Bob

Thanks. Both laptop and main PC are Win 7 64-bit. I've just run Geekbench on both of them for interest to see how "powerful" they are.

Main PC - AMD Phenom II X6 1055T @2.81Ghz, 8G RAM, 1.5TB hard drive - Geekbench 7660
Laptop - INtel Core i5-3210M @2.50Ghz, 8G RAM, 1TB hard drive - Geekbench 2856

When I play live I use the laptop + SD50 for backing tracks and Stage Piano plus another synth for my stuff and that seems to work fine, so I am going to forget ASIO and stick to MME!!!

I have also removed Sampletank as I never use it, may remove Coyote (only used for render and I've stopped using that now) and on the laptop I turn off background stuff like wireless, dropbox etc. and that seems to make it more stable.

I'll check my driver is up-to-date - should be, I only bought the SD50 recently.

Cheers
Peter