mitsubishi blue convergence problem ws-55511

hello i would like a little help from anyone that has possibly had this problem my ws-55511 the blue convergence is about three inches to the left and will not line up the blue cross is usually steady I got the cross to line up the first time it did it but will not line up at all now so watching tv is like a picture with a blue ghost to the left I will appreciate any ones help thank you.