I have recently bought a 22" W2252TQ LG monitor to attach to my 15"G4Powerbook. It suffers from sporadic rapid wobbling from side to side (ever so minor but annoying all the same). It is improved when I run the monitor with my Powerbook shut but not totally solved. LG have been more than useless in offering assistance - and I am disappointed that they won't even consider taking it back. Can anyone offer some advice - is it a tech problem? Thanks!