|No better when connected to another system (the laptop) and also display is described as fuzzy and blurred etc... Both statements point pretty conclusively to it being the monitor itself.|
The blurred etc. display is symptomatic of a failed or failing hi-voltage power cct/supply with the monitor itself; the voltage that goes to the CRT - this of course presumes the monitor is a crt system - not an lcd/tft etc... The latter operate in a different way to crt...
Testing your system with a known to be good monitor will more or less confirm your current monitor is faulty if that test monitor is OK when connected to your system (and the laptop too - as confirmation)?
At that point either you have the fault monitor repaired - or by a new one. The cost of repairing the faulty one may well turn out to as much, if not more, than a new one?