Monitor has turned into pink colour

[usama321]

hi,
the screen of my monitor has turned into pink colour.it was working fine a few days ago but yesterday when i switched of the computer directly without shutting it down,it turned into pink colour.please someone help it is very difficult to see anything clearly.if i smack it hardly it sometimes turn into normal colour.the cable of the monitor which is plugged into the cpu is a little bit loose.please help i shall be very grateful

 

[Tmagic650]

Tighten the cable to the computer. Remove the monitor cable from the computer. Make sure that the little nuts that the cable screws into are tight, and not missing. What kind of monitor is it? A big heavy CRT monitor or a thin lighter LCD monitor?