Bishopsgate, London based Personal Computers Plc, which specialises in micro-based management systems, revealed that the UKP1.75m pre-tax profit forecast for the year to May 31 has not been achieved. The company claims to have had difficulty coping with its growth and somewhat ironically blamed the lack of a computerised management system for up to UKP750,000 in late payments and bad debts. Managing director Michael Sterland said he has now installed an IBM business computer and has recruited staff to improve management controls and chase late payers. The statement was issued on the advice of the auditors and caused the company’s shares to drop 25p to 250p late last week. The directors say trading activity remains at a high level, with substantial new orders won during the early part of the year, and are confident that the firm can achieve a return to the previous pattern of profitable growth.