Kernel errors present

[Anne Wilson]

Logwatch today reported:

 WARNING:  Kernel Errors Present
    Buffer I/O error on device hdd, l ...:  15 Time(s)
    end_request: I/O error, dev hdd, sector ...:  1933 Time(s)
    end_request: I/O error, dev hdd, sunkno ...:  1 Time(s)
    end_request: I/O error, dwn ...:  1 Time(s)
    hdd: media error (bad sector): er ...:  1931 Time(s)
    hdd: media error (bad sector): st ...:  1933 Time(s)
    powernow-k8: BIOS error - no PSB or ACPI ...:  1 Time(s)

This is 2.6.17-1.2139_FC4.  I haven't seen anything like this before.  Should 
I worry?

Anne
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