There's a known problem with the lite update GUI not showing update progress. This only affects a minority of machines and has been seen in version 4 and 5.
If affected by this problem, when you initiate updates from the GUI you see the updating sources window appear as normal and then the available updates list dialog - again as normal.
After clicking to accept the updates, the downloading updates dialog *may* appear very briefly before disappearing. After that, there is no on screen indication of anything happening. For a large update/low speed connection this can take several minutes.
On completion, the updates completed dialog and option to view and save the updates log appear as normal.
If that's the problem you have, one way of monitoring in real time is to open a terminal window (e.g. right click on desktop and select 'open terminal here' or press CTRL-ALT-t together) and while the downloading and updating process is running use the following command in that window.
tail /var/log/llupdates.log
This will show you the last few lines of the update progress log as it builds. Repeating the command every few seconds should give you a close to real time indication of what is happening.
As you say you didn't have the problem in version 4, this may not be what you've got and you'll need to provide a bit more information.
