Found the problem,
some yahoo working with me here who has rights (but shouldn't have) to thsoe pc3 files was messing around with them, he updated the pc3 files and updated the relevant drivers on his machine,not everybody elses, but didn't realise the implications of his actions.
short story: problem sorted.
thanks for the replys folks.
BTW. Arizon, i will take that advice on board also, will get the serivice technician to look at the problem when service time comes
Thanks