UK stocks were subdued on Thursday, following weak economic data and continued investor uncertainty on Greek developments. Sector-wise, strong performances from technology and retail was outweighed by weakness in telecommunications and mining.As of 15:00 BST, the FTSE 250 was trading 0.012% lower at 18,216.Paypoint topped the risers after its pretax profit rose 7.7%, driven by its retail services business and expansion in Romania. The bill payment services provider also announced plans to sell its parking and online payment processing companies.Serco was trading higher after naming former Centrica boss Sir Roy Gardner as its new chairman.Infinis Energy was boosted by strong full-year results, with a profit of £20.7m in the 12 months to the end of March compared with a loss of £11.8m a year earlier. "This is our second year reporting as a listed company and we are pleased to announce financial results in line with expectations," said chief executive Eric Machiels.Synergy Health extended losses as hopes over the proposed takeover by US outfit Steris Corp continued to fade on rumours that the FTC will move to block the deal.Shares in Tate & Lyle slid after the sweeteners and food ingredients group said that full-year pre-tax profit dropped 30% as it continues to restructure its business.