I should be able to, but I can't. I've just made a third attempt. This time was like the first.
I'd successfully installed 7.10. I'd updated 7.10 and restarted. I then attempted to use update to install Hardy Heron. This time it got to 2 minutes to go on installation before stalling. When it stalls it starts up terminal, for some reason.
I am now reinstalling 7.10 for the third time today.