problems with /etc/.attwtmp on OSx 2.5

[info-pyramid at ucbvax.UUCP]

We are running a Pyramid 90x under OSx 2.5.  For some reason,
/etc/.attwtmp grows in size until it fills up the file system.  This
happens after less than a day of uptime.  We have attempted to disabled
the accounting from the rc files but with the same results.  What program
or part of the system controls .attwtmp?  Is there a way to fix the
problem?  Are other sites having the problem?  Any information would be
helpful.  Thanx.

			-- Brad Brahms
			   usenet: {decvax,ucbvax,ihnp4}!trwrb!trwspp!brahms
			   arpa:   Brahms at usc-eclc