One presumes this is a CRT and not a flat panel display? If so, then take it to your local TV repair shop (if you can find one). If it is a CRT, then the symptoms sound like the flyback transformer has gone snafu. FWIW, in the USA you can pick up a decent LCD flat panel for well under $150 USD. Example, on buy.com you can get a 20" LCD monitor (various manufacturers such as Samsung or Acer) for $110 to $150, shipping included. I just did a price check on their web site, so these are current prices.
rubberman
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