After installing the new 4.1 all was fine and I had a good evening exploring it - however the next day it crashed on what looked like loading the deck, I repeated this and then switched back to 4.0 which did exactly the same thing. I then realised that i didn`t have the same drive plugged in and hey presto both 4.0 and 4.1 fired up. This was good news and bad as it means that Resolume is crashing if it can`t find the required drive and files instead of loading an empty deck - great improvements though - cheers John McGeoch