I cannot seem to get the HUD transparent, it worked for me at the start, but after i configured it, it just stays solid. i guess its not too bad, but on party if i tile i cant see the bets or stacksizes etc....
The HUD background can't be transparent but it can be translucent. You need to make sure that "Enhance HUD Performance" is not checked on the Hud Options tab in order for translucency to be enabled. You can then change the translucency on the sliders on the Hud Options tab. (Configure --> Configure Hud --> Hud Options)