Noise when adjusting sample level with Q-Link

no it came before this 4.50 version...
i had the problem with the akai os (2.1)when i was using pans with q link...
i can't remember about volume...

"it's like a high-pitched mechanical type buzzing noise"

i'm gettin that too, it occures even on audiotrack with level/pan
also muting/unmutin audiotracks gives very short noise
i've resampled it

ive always foud this to be a factor, from 2.1 through till now, all the note on changes give me this noise. Dont know if its fixable or not . I gave the 2500 a go the other day at the music store, I love the faders on that thing, there soooo smoothe lol.