Sony KDL-32S2510 no teletext

[bonesy]

Odd one this,TV works fine,except for teletext,press text button on r/c,please wait comes up on screen,top right corner,but no further action.One odd thing,if you go to menu select sub titles on,you get sub titles!.I know this is an oldish set now,but lives in an antique cabinet,perfect fit & the guy who owns it is,well dinosaur.Are there any software upgrades for this problem?Is the text generated on the free view module or the main a.v. board.Many thanks John.