Oh, I'll get right to fixing the leak.
Update; I haven't seen a leak anywhere, the map is sealed completely.
Also, Whenever I click the 'Run Map key' I just get 4 options.
with 2 check boxes.
Opt 1
Run CSG
Opt 2
Run BSP
Opt 3
Run VIS
Opt 4
Run LIGHT
i have them all set to normal.
Checkbox 1
Dont Run Game
Checkbox 2
Save Visible objects only
both are ticked off.