🚀 go-pugleaf

Mandrake Linux 9.0:
I installed alsa-utils from CD1.
Rebooted.
error messages appeared:
/dev/hda2 (my ML9.0 partition) contains a file system with errors
...
unexpected inconsistency: run fsck manually...
failed to check filesytem. Do you want to repair the errors? Y/N
(beware, you can lose data)

I pressed Yes:
a lot of inodes were fixed or cleared

/dev/hda2: ****file system was modified ****
was in runlevel 3: tried a few commands but those weren't recognized
booted into KDE:
about 25 windows appeared that said: 
 "could not find mime type
  application/octet stream"
 or "could not find mime type
     application/x-executable"
 or "could not find mime type
      application/x-desktop"
 or "could not find mime type
      application/x-shellscript"
Each window has to be pressed twice to get rid of.
There are some Konqueror windows open from the former session,
I can use them to browse the internet or my file system.
I can not  start programs from the menu, in my file system a lot of files
have now file type mime.
I also have a Konsole window open: except for basic commands no command
is recognized.
I searched Google, found nothing useful, search function of 
expert@mandrake.com mailing list doesn't work.
Is there an easy way to repair my system or do I have to reinstall 
everything??

Very frustrated now, I thought linux file systems were stable.
vatbier