Yast configuration damaged. How to repair?

Hi, Somehow my Yast configuration got damaged (Suse 9.0). Probably because I had a test script in /usr/local/sbin, called 'test', which got used instead of the regular /usr/bin/test ... Now when I want to 'install of remove software' with yast, the collumn 'avail. vers.' is empty. And also the search function does only return packages it can find in the installed packages but not from the list of all available packages that are on the CD's... How do I fix this? -- Bye, Wilfred.