je ne comprends pas pkoi car avec les 40.41 l agp 4x marchait
et la non...
abit kg7
xp 1800+
512 ddr
ti 4200 (leadtek)
je precise dans mon bios c en 4x
avec rivatuner g ca
rthbridge information
$ffffffffff ---------------------------------------------------
$0400000000 Description : AMD 761
$0400000001 Vendor ID : 1022 (AMD)
$0400000002 Device ID : 700e
$0400000003 AGP bus : revision 2.0
$0400000004 AGP status : enabled
$0400000005 AGP rate : 1x 2x supported, 2x selected
$0400000006 AGP SBA : supported, enabled
$0400000007 AGP FW : not supported
$ffffffffff ---------------------------------------------------
$ffffffffff Display adapter information
$ffffffffff ---------------------------------------------------
$0000000000 Description : NVIDIA GeForce4 Ti 4200
$0000000001 Vendor ID : 10de (NVIDIA)
$0000000002 Device ID : 0253
$0000000003 Location : bus 1, device 5, function 0
$0000000004 Bus type : AGP revision 2.0
$0000000005 AGP status : enabled
$0000000006 AGP rate : 1x 2x 4x supported, 2x selected
$0000000007 AGP SBA : supported, enabled
$0000000008 AGP FW : supported, disabled
$0000000009 Base address 0 : f8000000 (memory range)
$000000000a Base address 1 : e8000000 (memory range)
$000000000b Base address 2 : f0000000 (memory range)
$000000000c Base address 3 : none
$000000000d Base address 4 : none
$000000000e Base address 5 : none
$ffffffffff ---------------------------------------------------
$ffffffffff NVIDIA specific display adapter information
$ffffffffff ---------------------------------------------------
$0100000000 Graphics core : NV25 revision A3
$0100000001 Hardwired ID : 0253
$0100000002 Memory bus : 128-bit
$0100000003 Memory type : DDR (RAM configuration 0a)
$0100000004 Memory amount : 65536KB
$0100000005 Core clock : 249.750MHz
$0100000006 Memory clock : 256.500MHz (513.000MHz effective)
$0100000007 Reference clock : 27.000MHz
$0100000008 Maximum Fvco : 900.000MHz
$0100000009 Core PLL Fvco : 499.500MHz
$010000000a Memory PLL Fvco : 513.000MHz
merci de me repondre si vous avez la solution 
