Upon checking again, there was an increase in stat.  My bad.

I got a Dex elixir, double clicked it and it's gone.  There was no change on my statistics.  Did I do something stupid?

Problem solved.  Learnt that at the chaotic temple nearby the wasteland - other chaotic temples don't work properly.

You should run Jlauncher

My mage is lvl 40 but still can't learn vampiric touch at chaotic temple.  Any help please?