Meantime Computervision Ltd is unhappy at a statement put out by Prime UK this week and has reacted angrily to Prime’s decision to end the OEM agreement under which Computervision sold Medusa on Prime kit: in a terse statement the company says Prime’s move comes as a surprise since the two organisations had a meeting about extending the agreement only on Wednesday last week; Computervision claims that it is Prime’s largest CAD/CAM OEM in the UK with $12m sales in the last 12 months; Prime will now go it alone on its Prime Medusa version of the CAD package which has been jointly owned by Prime and Computervision since the latter acquired the originator of Medusa, Cambridge Interactive Systems Ltd, based in Cambridge, UK, in 1983.