Error Codes in Win Me

[Isepic]

I have used the sys tools in the WinMe and have found the following device errors

Device PNP Device ID Error Code
ACPI IRQ Holder for PCI IRQ Steering
ACPI\*PNP0C0F\00000003
22

Win2000 Promise Ultra100 (tm) IDE Controller (PDC20265)
PCI\VEN_105A&DEV_0D30&SUBSYS_4D33105A&REV_02\BUS_00&DEV_11&FUNC_00
22

1.What are these??
2.Are they serious to affect the system running effeciently ?? 3.How do i go about resolving them ??

I have disabled the win2000 promise option as it was causing my machine to take a very long time to boot, once i had done this it seemed a lot better

P.S where does one find out what these error code 22's are or any others that you as a novice user can encounter.

Please Help !!