I just got my 57 repaired (through official channels) after something burnt out in it. Now the scopes within Serato are tiny when I boot it up, anyone else had this?

I've tried connecting another 57 and the scopes are fine with that so I'm thinking something has been changed within the mixer. I also noticed that the firmware for the mixer had been downgraded from the latest v.3 to 2. something??? I've updated it now but it's made no difference.

The signal on the scopes reads fine - usually 100% with the occasional waver on the old control discs, I even played a whole set without a problem last week but the small scopes are a bit disconcerting. I will A>B all the settings next week with the other mixer to make sure everything is the same but if anyone has any idea what it could be then please let me know. Even if I turn the slider next to the scope up to 16 (it's usually on 2) it makes very little difference.

I'm running 1.8.1 still but this shouldn't make any difference as everything is normal using exactly the same kit with the other 57.