Three small issues in Ubuntu (back button, greyed out copy, weak spam filter)

[Dave M G]

Ubuntu Users,

	I'm reasonably sure these issues have something to do with their
implementation in Ubuntu, even though they are application specific. I
was not experiencing anything like this with these applications
installed in other distributions.

	1. My back button in Firefox suddenly stopped working. It starts out
"greyed out" when I open it, and no matter what web sites I go to, it
remains greyed out, hindering me from it's intended purpose.

	2. The "Copy" command in the Evolution main window is always greyed
out. I can use Ctrl+C to copy, so copy functions are available. But I'm
a mouse using person, and I'd like to know why the menu option is
unavailable.

	3. The spam filtering in Evolution seems very weak. After I learnt in
another person's thread on this list that I needed to set "Enabled" to
"1" in some configuration file, the spam filtering is helping. But I
notice it's much weaker than Thunderbird. Is there something I should be
doing to improve its effectiveness?


--
Dave M G