I just can't get this to work at all. I wonder if anyone could give me a hand?

When I click the dropbox icon my n900 hangs for a minute then goes back to the homescreen.

I have entered this code in xterm.

sudo gainroot
python2.5-qt4-network
python2.5-qt4-webkit

And it says its not found.

I have had a quick look through the thread but nothing has jumped out on me that I can try, although there are a lot of pages and I may have missed something.

I'd be really grateful for any help, thanks.