suspend/resume error message in win98

Hi,

When I do suspend/resume on Win98SE system with ACPI, I found the following
message before the driver received power management notifications. Any body
got any idea?

“CM WARNS: Cannot do S3 because of MyDevice, trying to lighten sleep state”
“CM WARNS: Cannot do S1 because of MyDevice, trying to lighten sleep state”

Thanks

James