On Sun, 9 Oct 2005 21:22:04 +0100, Ian Jelf
wrote:

Although my balance always seems to come up on 'bus readers, only once
or twice have I seen it come up on a tube gate reader. I thought at
one time that that was because I's just topped up but maybe there's
another reason for its apparently randomly doing this?

On the newer ticket gates, it appears on the screen. On the older
ones, it appears on the LCD display by the yellow Oyster pad.