[OS X TeX] page breaks between sections

[Luis Sequeira]

> I am preparing a paper using the amsart document class; the paper is divided into sections using \section.
> In contrast to what I recall in earlier versions, the class appears to (1) put title, acknowledgements and abstract on a separate cover page, and (2) start each section on a new page.  Is there a way to prevent (2), if not also (1)?
> 
> Zbigniew Nitecki
> Department of Mathematics
> Tufts University
> Medford, MA 02155

You recall correctly.
This is not the default behavior of amsart. 
What TeX distribution are you using? 
Can you post your preamble and log?

Luis Sequeira