Well that's how my NEC MultiSync E1100+ started out which is also a 21". It then got to the point the screen would shut off and the older it got the worst it got til one day it wouldn't come on at all. I looked into getting mine repaired but it was going to cost $120 to fix it so I just got a new monitor only 19" and I do miss that super heavy 21" monitor still. Mine had a bad flyback and vert. output transisor. I found a place locally that sell's the NEC and Dell 21'' monitors off lease for around $200 with 90 day warrenty.