cache.log showing this...

Hi fellows...
V880, Ultra SPARC III, Solaris 8, Squid 2.5STABLE1
Giga Ethernet access to internet, four thousand users behind my proxy and
the cache.log shows this over and over again (1 or 2 times per minute):

  comm_accept: FD 7: (130) Software caused connection abort
  httpAccept: FD 7: accept failure: (130) Software caused connection abort

we thougth there was a problem with the communication speed to the internet,
so the Client's Web browser wold abort the connection, but the down and up
load rates to the internet on my net are about 100-200 Kb/s (through squid),
so this is not the problem...  why is this happening??

Any ideas?

Thanks in advance!

.Héctor M.