Quotacheck failing

[Don O'Neil]

I'm having a problem with quotacheck failing and giving this message:

quotacheck: /home/quota.user: seek failed: Invalid argument THE FOLLOWING
FILE SYSTEM HAD AN UNEXPECTED INCONSISTENCY:
	/dev/twed0s1d (/home)

However, I have run a full fsck from single user mode on this volume and it
comes up clean every time. I've removed the quota.user and had it
re-generated, but that didn't help either.

Anyone know how/why this is happening, and what do try to do to fix it? Is
there possible some corrupt file somewhere on the volume that quotacheck
doesn't like, but is technically fine according to fsck? 

Thanks for any suggestions!