Keef it may be time to cobble some coppers together ( no- not those kind of coppers!)and invest in a nice Dell or Hewlett Packard. These computers, even laptops are fairly cheap in relative terms these days, and may surely work out cheaper than always paying out to repair the current one.
Gadzooks and shock horror.. the modern ones are even reliable! Yes really
If it was a car you were talking about there, the insurance companies would consider it a write-off and have it crushed at the taxpayers expense. I have this sad vison of poor oul Keef on an ancient machine with elastoplast stuck all over it and white hot vapour steaming out of the sizzling keys.
Yes time to grasp the nettle of economic indulgence and take the plunge into the depressed marketplace. Just think, the Bank of England, even our glorious government will love you for it, as there are so few people spending anything in the high street UK at the mo.