curious Ethernet errors

[provinsd@enf403-2.ensu.ucalgary.ca (Dean Allen Provins)]

Hello:

I have been experiencing curious NIC error messages, none of which
mean anything to me.  Any assistance in comprehending their content is
welcome.

System is Debian 2.1 (up to date) on Pentium, 64 MB, with NIC (from
dmesg),

eth0: PCnet/ISA 79C960 at 0x340, 00 00 f4 b1 84 e7, probed IRQ 12, DMA 7.
lance.c:v1.14ac 1998/11/20 dplatt@3do.com, becker@cesdis.gsfc.nasa.gov

The error message that appears in 'dmesg' at various times after
booting is:

eth0: transmit timed out, status 0062, resetting.
Ring data dump: dirty_tx 118 cur_tx 134 (full) cur_rx 58.
83c09800 0608 00b6 83d3b800 0608 0040 83d3b000 0608 0040 83d3a800 0608 00b6
83d3a000 0608 0076 83d39800 0608 0040 83d39000 0608 0040 83d38800 0608 00b6
83d38000 0608 0040 83fd7800 0608 0076 83fd7000 0608 00ea 83fd6800 0608 00b6
83fd6000 0608 0044 83fd5800 0608 00b6 83fd5000 0608 0041 83fd4800 0608 0040
83ff0000 002a 0000 83f26002 04fe 0000 83c09002 05ea 0000 83c08802 05ea 0000
83ff1820 002a 0000 83ff1e28 002a 0000 83fd4002 04fe 0000 83ff2a38 05ea 0000
83ff3040 05ea 0000 83c08002 04fe 0000 83f27002 05ea 0000 83f26802 05ea 0000
83f27802 04fe 0000 83ff4e68 05ea 0000 83ff5470 05ea 0000 83ff5a78 002a 0000

Note that error messages of this form, but different content appear
irregularly, but frequently (2 in < 24 hours this time).

Is the NIC bad, or do I have another problem?

Thanks,

Dean Provins
Calgary