I just upgraded my E4419A with DSP A01.11 and firmware A2.09.01. It works fine after the upgrade and passes all self-tests, but there is a new behavior: when I power off the meter the power light flashes on and off about three times a second. Before the upgrade, the power light glowed a steady orange when in standby. I've never noticed this behavior before. Does this indicate some sort of fault? Thanks!