Invalid Sibling Link -127

[Martin Trauth <trauth@use.address.in.sig>]

I am one of these poor guys using a PowerBook 5300. After having almost
everything exchanged by Apple there is a new problem today - after only
working on it for one week.

I use a PowerBook 5300cs with System 7.5.2, System Enabler 1.2.1. Since
today I can't save any files neither on the harddisk nor on a floppy. If
I try to
I get error messages like "Error -127" or ""Invalid Sibling Link -127".
The
Disk First Aid says that I have a disk error, but can't repair it.
Sometimes I
cannot even create new foldes on my HD, sometimes I can.

Any help? Please reply via email since I am not reading this newsgroup
very often. Do not use reply function but use email address in the
signature.

Regards,

Martin
--
Martin H. Trauth, Inst f Geowiss Uni Potsdam
POB 601553, D-14415 Potsdam, Germany, Tel +49-331-977-2288
trauth@rz.uni-potsdam.de