RM Plc, one of the UK’s biggest suppliers of computing technology to schools, has warned that uncertainty surrounding the Labour government’s increased spending plans on school technology, together with increased internal development and marketing costs, will hold back its profits for the coming six months. Pre-tax profits for the year to September 30th grew 18% to 8.0m pounds on revenue up 11% to 110m pounds but the Abingdon, Oxfordshire-based company said that at best it would only break even in the current half. The shares remained unchanged at 920 pence. The dividend for the year grew 16% to 7.2 pence.