Opera ups stakes in browser probe

Norwegian web browser maker Opera urged European Union regulators&nbsp; not to rush to close their antitrust case against Microsoft before ensuring a level playing field among browsers.<br /><br />Competition Commissioner Neelie Kroes has said she is keen to reach a settlement to the decade-long dispute with Microsoft before her term ends this year. <br /><br />But Opera said it was concerned that a premature settlement could leave the market distorted.