There can be several reasons when you can not access our webOPAC:

• Cookies are disabled and the security level is set to high
• a Pop-Up-Blocker is enabled and inhibits, that the webOPAC can open in a new window
• the Browser is not updated
• JavaScript is disabled
• with the new web browser Mozilla Firefox 3 Problems with SSL-certificates can happen, because the certificate of our webOPAC is not included by default in Firefox 3