WFTO 1.4 in game UI slow to respond

hi team.

Upon installing 1.4 HoG update have found that the in game UI (where you select rooms,spells,defenses etc) takes a while to respond to mouse input.

I click to select the rooms tab and it doesn't open the rooms box straight away. I then goto select a room to build and it takes somewhere between a few seconds to a minute to change the hand of evil to room placement hand.

Same goes for spells, defenses, constructs.

I've found that double clicking speeds it up slightly but when it comes to the veins of evil. I just have to sit patiently.

This happens on both normal and HoG campaigns and scenarios and skirmishes.

Prior to 1.4 this wasn't a problem

I'll upload a report when I finish work.