Hi, I am new here.
How to search what I am looking for, like vertex.
Selecting "search" from the menu that you have just below PF logo.
Alternatively, you can use Google for that - just add "site:physicsforums.com" to your search query, to limit it to the site.
Borek's suggestion is good. Another alternative:
1. Click on "Search". Not "Search this thread", but "Search", way at the top of this or any PF page.
2. In the drop-down list, click on "Advanced Search"
3. Fill in the search form and click "Search Now". Do not click "Go", that does not make the search happen.
(Damn that "Go" button, why must it torment me so? )
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