I'm not sure where to file this one, X or kernel?

I have a Logitech Cordless Desktop S510 USB keyboard/mouse comb.

If I run X (versions 1.4.0.90 16/17/18-mdv2009.0) with kernel
2.6.24.4-desktop-1mnb it works correctly. With any 2.6.25.x kernel, I
get only vertical motion from the mouse. X reports the following errors:

(**) Mouse1: Device: "/dev/mouse"
(**) Mouse1: Protocol: "ExplorerPS/2"
(**) Option "CorePointer"
(**) Mouse1: always reports core events
(**) Option "Device" "/dev/mouse"
(==) Mouse1: Emulate3Buttons, Emulate3Timeout: 50
(**) Mouse1: ZAxisMapping: buttons 4 and 5
(**) Mouse1: Buttons: 9
(**) Mouse1: Sensitivity: 1
(II) evaluating device (Mouse1)
(II) XINPUT: Adding extended input device "Mouse1" (type: MOUSE)
(II) evaluating device (Keyboard1)
(II) XINPUT: Adding extended input device "Keyboard1" (type: KEYBOARD)
(II) Mouse1: ps2EnableDataReporting: succeeded
[mi] EQ overflowing. The server is probably stuck in an infinite loop.
[mi] EQ overflowing. The server is probably stuck in an infinite loop.
[mi] EQ overflowing. The server is probably stuck in an infinite loop.
[mi] EQ overflowing. The server is probably stuck in an infinite loop.
[mi] EQ overflowing. The server is probably stuck in an infinite loop.
...

The same problem occurs with the evdev driver in use (as configured
during install):

(**) Mouse1: always reports core events
(**) Option "Device" "/dev/mouse"
(==) Mouse1: Emulate3Buttons, Emulate3Timeout: 50
(**) Mouse1: ZAxisMapping: buttons 4 and 5
(**) Mouse1: Buttons: 9
(**) Mouse1: Sensitivity: 1
(**) Option "SendCoreEvents"
(**) Mouse2: always reports core events
(**) Mouse2: Device:
"/dev/input/by-id/usb-Logitech_USB_Receiver-event-mouse"
(II) Mouse2: Found x and y relative axes
(II) Mouse2: Found mouse buttons
(II) Mouse2: Configuring as mouse
(II) evaluating device (Mouse2)
(II) XINPUT: Adding extended input device "Mouse2" (type: MOUSE)
(II) evaluating device (Mouse1)
(II) XINPUT: Adding extended input device "Mouse1" (type: MOUSE)
(II) evaluating device (Keyboard1)
(II) XINPUT: Adding extended input device "Keyboard1" (type: KEYBOARD)
(II) Mouse1: ps2EnableDataReporting: succeeded
[mi] EQ overflowing. The server is probably stuck in an infinite loop.
[mi] EQ overflowing. The server is probably stuck in an infinite loop.
[mi] EQ overflowing. The server is probably stuck in an infinite loop.
....

Kjel Oslund