Thank you, I will try that tonight when I get in. Would you please explain what 'staging' is/means/does. At the moment it's all pretty much greek (no offence intended - please choose any 'generic' foreign language to suit :) ) to me ! From reading, I understand that a 'repository' is another name for a top end file in which all other programs are kept ? I'm still finding it a bit awkward to navigate around.[i haven't found the mental key to hang it on so it all starts making sense yet ... I'm literally a brand new user; I got a new computer in bits, with advice from my son and his friend on what to have, the friend built it with my 'help', and I decided to try running it on linux, something I've wanted to try for a long time, instead of windows (YUK!) 3 days ago so forgive me if I don't get terms, that to you may be perfectly obvious, straight away ...