It looks that the first RIGOL DS2000 with poor QC are spotted.
Yes it happens even in the best houses as we say in Greece, when something gets wrong in the assembly line.
The smart thing is to notify your seller and get one replacement, so to keep your three years warranty intact.
This fellow sacrificed his warranty for few clicks on Youtube.
Shit can happen even at the extremely large or high priced items like a plasma television.
It is a stupid move to open it up, just for playing the smart doctor.