Spamhaus problems anybody?

Has anybody here been experiencing any abnormalities with the spamhaus
SBL-XBL lists? I've gotten an alarming number of complains in the last
24 hours regarding mail rejections from IP's that do not appear to be
listed in the SBL-XBL databse.

It would help to have some examples of the IPs involved.
Could you possibly mail (some|all) of them to me offlist?