Photoshop gets stuck on white select tool

Anywhere from every 20mins to every 1hr while using Photoshop (seemingly all available versions) the tools will lock on the white arrow select tool and nothing responds. 

I can still press F to cycle screen mode, and I can save and exit etc, but I cannot un-select the tool or select any others. 

Incredible waste of time and very frustrating to say the least. 

Have tried different keyboards (assuming stuck key), different versions of Photoshop and the problem persists.