[exim] (no subject)

Hello all,
I have a problem with exim, I compiled it for a libc5 system and it went
all right.
But now here is what I get when I try to launch it (sending is ok) :

Apr 19 07:29:27 - exim[12720]: 2005-04-19 07:29:27 cannot run
initgroups(): no passwd entry for uid=1000
Apr 19 07:29:27 - exim[12722]: 2005-04-19 07:29:27 cannot run
initgroups(): no passwd entry for uid=1000
Apr 19 07:29:27 - exim[12720]: 2005-04-19 07:29:27 cannot run
initgroups(): no passwd entry for uid=1000
Apr 19 07:29:27 - exim[12722]: 2005-04-19 07:29:27 cannot run
initgroups(): no passwd entry for uid=1000

Apr 19 07:29:45 - exim[12753]: 2005-04-19 07:29:45 1DNnB0-0003Jh-HJ <=
root@??? U=root P=local S=283
Apr 19 07:29:46 - exim[12767]: 2005-04-19 07:29:46 1DNnB0-0003Jh-HJ =>
webmaster <webmaster@???> R=localuser T=local_delivery
Apr 19 07:29:46 - exim[12767]: 2005-04-19 07:29:46 1DNnB0-0003Jh-HJ
Completed


Anyone having a clue what's wrong ?
Thanks a lot in advance,
Mathieu CATTIN.