the most common sollution for this is that the heat sink is blocked by lots of dust. ( 90% of the time it's this cause)
you have to remove the cover under the machine and you will see the exposed headsink, undo the 4 screws holding it...
There is a hack out there to fix the ide error it requires you to solder a piece of wire to change the jumper mode.
go to www.google.com
type in ide error toshiba
you should get server pages with your issue.