OXFORD, U.K.--Computer-aided molecular design software vendor Oxford Molecular here announced March 31 that after five unprofitable years, in 1997 it achieved an overall pretax profit of £256,000 for the year. CEO Tony Marchington attributed increased sales to successful cheminformatics and bioinformatics businesses where Oxford's Omiga and RS³ products benefitted from strong customer demand. Oxford's June 1997 acquisition of two profitable firms, Genetics Computer Group and MLR Automation, further strengthened performance, Marchington said.