Comment out the ACPI enumeration entries for i8042prt driver. It's set as system load driver, so it's loaded anyway.

Modified: trunk/reactos/bootdata/hivesys.inf

--- trunk/reactos/bootdata/hivesys.inf	2005-08-05 10:01:51 UTC (rev 17064)
+++ trunk/reactos/bootdata/hivesys.inf	2005-08-05 10:11:21 UTC (rev 17065)
@@ -488,10 +488,10 @@

 HKLM,"SYSTEM\CurrentControlSet\Services\i8042prt","ErrorControl",0x00010001,0x00000000
 HKLM,"SYSTEM\CurrentControlSet\Services\i8042prt","Start",0x00010001,0x00000001
 HKLM,"SYSTEM\CurrentControlSet\Services\i8042prt","Type",0x00010001,0x00000001

-HKLM,"SYSTEM\CurrentControlSet\Enum\ACPI\PNP0303\0000","Service",0x00000000,"i8042prt"
-HKLM,"SYSTEM\CurrentControlSet\Enum\ACPI\PNP0303\0000","ClassGUID",0x00000000,"{4D36E96B-E325-11CE-BFC1-08002BE10318}"
-HKLM,"SYSTEM\CurrentControlSet\Enum\ACPI\PNP0F13\0000","Service",0x00000000,"i8042prt"
-HKLM,"SYSTEM\CurrentControlSet\Enum\ACPI\PNP0F13\0000","ClassGUID",0x00000000,"{4D36E96F-E325-11CE-BFC1-08002BE10318}"

+;HKLM,"SYSTEM\CurrentControlSet\Enum\ACPI\PNP0303\0000","Service",0x00000000,"i8042prt"
+;HKLM,"SYSTEM\CurrentControlSet\Enum\ACPI\PNP0303\0000","ClassGUID",0x00000000,"{4D36E96B-E325-11CE-BFC1-08002BE10318}"
+;HKLM,"SYSTEM\CurrentControlSet\Enum\ACPI\PNP0F13\0000","Service",0x00000000,"i8042prt"
+;HKLM,"SYSTEM\CurrentControlSet\Enum\ACPI\PNP0F13\0000","ClassGUID",0x00000000,"{4D36E96F-E325-11CE-BFC1-08002BE10318}"

 
 ; Keyboard class driver
 HKLM,"SYSTEM\CurrentControlSet\Services\kbdclass","ErrorControl",0x00010001,0x00000000