Monitor making squealing noise

Yesterday my monitor was fine...today when i turn it on..no light just a high pitched squeal...safe to say my monitor is done?
something fried?

17ich crt.
 
In short, yes.

I think it has something to do with the power supply. We have a tv that does almost the same thing, but we still have a picture. We don't turn off the tv because when we do the power supply "area" squeals for about 5 minutes. We can hit the tv and it stops, but then comes back. This goes on until it warms up. We now turn off the cable box instead- almost 2 years now.
BTW, I read somewhere that this has something to do with the transformer in the power supply. Sounds like it's somewhat typical. One day, Santa will bring my Plasma. :D

I have the Dell 20" LCD - not the wide screen one - paid around $460. Love it. Had to get a new graphics card to support the resolution though. Got the card from newegg.com.
 
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