Anyway with too many open windows the scope became very slow.
Oh, now we're going to complain about that...?
Right now, FW bugs apart, there is only one thing i would complain about : FAN noise.
IMHO it's barely acceptable, much louder than DS1054Z, i would ask to Rigol an additional warranty sticker with official permission to open scope and change those t**** with something decent, at my expense.
What I do not understand is that there is plenty of space for at least 25mm deep FANs, where now we have 2x 60x60x15 19CFM @ 3600 that when are cold make buzz/rattle sound.
I measured average power draw, is around 46 Wrms (2 Wrms in standby), all this noise is not justified.