nvidia geforce 2 mx 400 AGP 64MB TV OUT

my problem is while using dual monitor in this card, one is PC monitor and other one is TV (B/PAL – INDIA), the TV screen didn’t fit exactly. either it is outside of TV screen or inside the TV screen area. But, monitor display is excellence. How to troubleshoot this problem. Any one help me please.

Now my settings are as below:

PC Monitor resolution: 800×600.
TV Screen : 720×560.

When i had change the resolution of Monitor to the TV screen also affects.

When i had change the TV resolution to 800×600 it goes to very small screen. and in 640×480 also the screen goes to small screen.

In the middle range 720×560 only i had got screen out of picture tube slightly.

Please help me to troubleshoot this problem.