PS CS6 +20Rep

[Kasabian]

Wait, I may be stupid here but I use a USB mouse to do graphics so would Touch Pad calibration even work? @Kasabian;

In that case; no

[Chippiewill]

This may sound very random but in the past I've found that various Adobe software, particularly creative suite software, is not very found of other applications running. It may be worthwhile shutting down all other programs and then testing it again.

[Samantha]

Just tried your way @Chippiewill; nothing changed .