Problem with PS/2 mouse driver in XFree86 4.3.0

Hello,

	I have an Abit KT266 based motherboard and am having some trouble using
the PS/2 mouse driver under XFree86.  I have the protocol set to "auto",
and the device set to /dev/psm0.  This configuration has worked with
this same Intellimouse in the past.  The symptoms are that that when the
mouse is moved, the cursor is only updated about once a second.  After
searching google, I found the following URL in which another person
experienced the same problem (from freebsd-bugs).  Apparently it only
shows up on certain chipsets (VIA based).  I tried several other PS/2
mice, to no avail (same outcome).  My system is running a day old
-current build, but this other fellow reported the problem in 5.0 (does
not affect 4.x).  I'm wondering if anyone else has experienced this
problem, and if so, are there any work-arounds?  I've attached my
'dmesg' output, in the hopes that the information will be of value.
Thank you in advance!

URL:
http://lists.freebsd.org/pipermail/freebsd-bugs/2003-April/000426.html

                                    -Mike Bohan

Copyright (c) 1992-2003 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights
reserved.
FreeBSD 5.1-CURRENT #3: Fri Aug  8 09:10:54 EDT 2003
    root_at_censored:/usr/obj/usr/src/sys/CABOOSE
Preloaded elf kernel "/boot/kernel/kernel" at 0xc0424000.
Preloaded elf module "/boot/kernel/acpi.ko" at 0xc0424244.
Timecounter "i8254"  frequency 1193182 Hz
CPU: AMD Athlon(tm) processor (1333.91-MHz 686-class CPU)
  Origin = "AuthenticAMD"  Id = 0x644  Stepping = 4
 
Features=0x183fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR>
  AMD Features=0xc0440000<RSVD,AMIE,DSP,3DNow!>
real memory  = 268369920 (255 MB)
avail memory = 256196608 (244 MB)
Pentium Pro MTRR support enabled
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <VIA694 AWRDACPI> on motherboard
pcibios: BIOS version 2.10
Using $PIR table, 8 entries at 0xc00fdef0
acpi0: power button is handled as a fixed feature programming model.
Timecounter "ACPI-fast"  frequency 3579545 Hz
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x4008-0x400b on acpi0
acpi_cpu0: <CPU> on acpi0
acpi_tz0: <thermal zone> on acpi0
acpi_button0: <Power Button> on acpi0
acpi_button1: <Sleep Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port
0x5000-0x500f,0x4080-0x40ff,0x4000-0x407f,0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib0: slot 8 INTA is routed to irq 10
pcib0: slot 9 INTA is routed to irq 5
pcib0: slot 11 INTA is routed to irq 10
agp0: <VIA Generic host to PCI bridge> mem 0xe8000000-0xebffffff at
device 0.0 on pci0
pcib1: <PCI-PCI bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
pcib0: slot 1 INTA is routed to irq 11
pcib1: slot 0 INTA is routed to irq 11
pci1: <display, VGA> at device 0.0 (no driver attached)
dc0: <ADMtek AN985 10/100BaseTX> port 0xd000-0xd0ff mem
0xef000000-0xef0003ff irq 10 at device 8.0 on pci0
dc0: Ethernet address: 00:04:5a:40:b5:0d
miibus0: <MII bus> on dc0
ukphy0: <Generic IEEE 802.3u media interface> on miibus0
ukphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
dc1: <LC82C115 PNIC II 10/100BaseTX> port 0xd400-0xd4ff mem
0xef001000-0xef0010ff irq 5 at device 9.0 on pci0
dc1: Ethernet address: 00:a0:cc:34:54:93
miibus1: <MII bus> on dc1
dcphy0: <Intel 21143 NWAY media interface> on miibus1
dcphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
dc2: <82c169 PNIC 10/100BaseTX> port 0xd800-0xd8ff mem
0xef002000-0xef0020ff irq 10 at device 11.0 on pci0
dc2: Ethernet address: 00:a0:cc:d6:ea:b4
miibus2: <MII bus> on dc2
bmtphy0: <BCM5201 10/100baseTX PHY> on miibus2
bmtphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
isab0: <PCI-ISA bridge> at device 17.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <VIA 8233A UDMA133 controller> port 0xdc00-0xdc0f at device
17.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
fdc0: <Enhanced floppy controller (i82077, NE72065 or clone)> port
0x3f7,0x3f2-0x3f5 irq 6 drq 2 on acpi0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model IntelliMouse, device ID 3
orm0: <Option ROM> at iomem 0xc0000-0xcbfff on isa0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on
isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
Timecounter "TSC"  frequency 1333905046 Hz
Timecounters tick every 1.000 msec
DUMMYNET initialized (011031)
ipfw2 initialized, divert disabled, rule-based forwarding enabled,
default to accept, logging disabled
IP Filter: v3.4.31 initialized.  Default = pass all, Logging = enabled
acpi_cpu: throttling enabled, 2 steps (100% to 50.0%), currently 100.0%
ad0: 39083MB <Maxtor 5T040H4> [79408/16/63] at ata0-master UDMA100
ad1: 29333MB <WDC WD307AA> [59598/16/63] at ata0-slave UDMA66
ad2: 43979MB <IBM-DTLA-307045> [89355/16/63] at ata1-master UDMA100
ad3: 43979MB <IBM-DTLA-307045> [89355/16/63] at ata1-slave UDMA100
Mounting root from ufs:/dev/ad0s1a