If you're working with searching Lotus Notes with SharePoint Server 2007 or Search Server 2008, you may have hit one of the following problems:
"You configure SharePoint Server 2007 to crawl a Lotus Notes content source. In the Manage Content Sources page, you add a new content source by specifying a database name. When you edit the newly created content source, the database name is not listed in the Database Name list."
"You configure SharePoint Server 2007 to crawl a Lotus Notes content source. You first perform a full crawl for the content source. However, when you click Edit content source for the content source, and then you click OK, you have to perform a full crawl again before you can search the content source. This behavior occurs even if you did not change any settings for the content source."
Although a work around is possible by using administration tools like SharePoint Search Admin (http://www.codeplex.com/searchadmin) we recently released a hotfix to fix the issues – KB950280 (http://support.microsoft.com/kb/950280 ), it also solves several other bugs including a fix for the German wordbreaker - if you have problems searching compound words like “Riesentorte” and “Baumgarten”, this hotfix should solve the problem.
Remember, if you have not applied Service Pack 1 on SharePoint Server 2007, please apply it before you install this hotfix. There’s no SP1 requirement for Search Server 2008.
Jie Li Partner Technology Specialist Microsoft China