Asus P4T and Geforce4 MX compatibility problem???

Hi everyone,

There is another syndrom without display here. I just bought Leadtek Winfast A170T Geforce4 MX440 and installed it into my ASUS P4T (Socket 423 - intel 850 chipset). There was no display and no beep at all. Just blank screen. The VGA card works fine in my celeron 1GHz mobo. Is it something wrong with ASUS P4T with this VGA card. As I know that new VGA card are using 1.5V VGA voltage while i850 only support 1.5V. There should not be any problem matching them up. Can anyone help me on this? I've updated the BIOS to version 1005 and contacted the ASUS tech support but there was no reply at all.

Here is my system:
- P4 1.7GHz socket 423
- ASUS P4T mobo
- MSI GeForce2 MX400 replaced with Leadtek GeForce4 MX440 and cannot run after replacement. GeForce 2 still working fine.
- Creative SB! Live Sound Card
- Maxtor 40GB 7200rpm HDD
- 52X Samsung CDROM
- 17" Samsung Syncmaster 753DFX monitor

I'm not sure if the height of the slot lines has anything to do with it. I noticed that the GeForce 4 cards is having unequal lines height whereas GeForce 2 and 3 cards are equal.

Anyone have any idea what went wrong?