Permission denied !? - will i ever update my system again ?

[Moritz Angermann <moritz.angermann@gmx.net>]

well 
hi all,
now after using reiserFS for a very long term without any problems
i'm facing a totaly new one and i'm helpless.
the problem is, while apt-get dist-upgrade, you all know this
command,[or not]
i get : 
can't access ./usr/include/arpa/telnet.h (...): permission denied

so i did ls -lah /usr/include/arpa/
the result : ( as root )
---
#>ls -lah /usr/include/arpa/
ls: /usr/include/arpa/telnet.h: Permission denied
ls: /usr/include/arpa/tftp.h: Permission denied
insgesamt 51K
drwxr-xr-x    2 root     root          181 2002-07-17 23:21 .
drwxr-xr-x   92 root     root         6.2K 2002-07-17 23:21 ..
-rw-r--r--    1 root     root         3.4K 2002-06-24 18:57 ftp.h
-rw-r--r--    1 root     root         4.3K 2002-06-24 18:57 inet.h
-rw-r--r--    1 root     root         5.9K 2002-06-24 18:57
nameser_compat.h
-rw-r--r--    1 root     root          20K 2002-06-24 18:57 nameser.h
(root@prototype/Wed Jul 17//home/cone/4)
#>
---

doesn't look any good, does it !? ...
so i tryed my HD-vendors tool.
WesternDigital...
but it told me my disk was 100% ok.
( it did also tell me a while ago, my dist had errors, so it corrected
em, awesome tool :p )
---
but now, what can i do about it ? reiserfsck ? well it keeps telling me
about unsable and i shall not use it ...

so any ideas ? 

thanks.

-moritz