During the apckage download running in GUI clicking on the Cancel button doesn't yield any results.
Here's what's happening with 2.5.4 . . . clicking 'cancel' still does not cancel the download, but does cancel the up2date program once the packages are downloaded. So, it would kill off the process between downloading and installing the packages. Still not what we are looking for I don't think, so I am leaving the issue open.
assigned to adrian
should work with current versions, the gui events get handled more approriately when downloading now.
Fixed in latest version, closing.