Ubuntu issues no left click..(and other issues)

Whenever I boot up ubuntu jaunty (64bit) it’s recently started playing up…(this week)

when the desktop first appears the system ignores left (and maybe right) mouse clicks this continues until I restart the x server which fixes it…

also, update manager notifier icon never appears for me anymore…

and nautilus has started crashing… notably whenever I go to a certain sub folder on my ftp site through a shortcut in nautilus

Any ideas? I’ve tried searching ubuntu forums but to no avail!