Last Thursday my school held it's first event requiring the tech group. I noticed this late last year, but didn't get the time to really look at it until now. When bringing the Grand Master fader on our Strand MX board up or down, the light's levels will jump around. For example, bringing the fader up from 0, the lights won't come on until 3 or 4, and then pop on, then between 5 and 10 will pretty much jump to any level and produce a flickering effect. It only does this with the Grand Master, and a smooth fade can be accomplished crossfading between the A and B set of faders. Basically, I'm asking if this is something we can fix ourselves, or do we have to send it in or get a new board?