I would recommend that you rather use SumatraPDF as a PDF viewer. You do not need to close it before recompiling your document and (very important) it has SyncTex capabilities. That means that you can jump direct from a position in the viewer to the corresponding text in your Latex file and vice versa.
The following setup is from the TeXnicCenter tutorials.
Change the existing profile LaTeX=>PDF
or make a copy say, LaTeX=>PDF (Sumatra)
. Edit the profile. Under the three tabs: (La)Tex, Postprocessor and
Viewer make the following settings:
(La)Tex:
Command line arguments to pass to the compiler
-synctex=-1 -interaction=nonstopmode "%Wm"
Postprocessor:
No settings required
Viewer:
Path of executable
"<path>\SumatraPDF.exe" -inverse-search "\"<path>\TEXCNTR.EXE\" /ddecmd \"[goto(ā%fā,ā%lā)]\""
At View project's output set the radio button to Command line argument
At Forward search set the radiobutton to DDE Command
- Command:
[ForwardSearch("%bm.pdf","%Wc",%l,0,0,1)]
- Server:
SUMATRA
- Topic:
Control
At Close document before running (La)TeX set the radio button to Do not close
.
I suspect something went wrong with the configuration of the builder settings. I had a similar problem which required me to reconfigure that part of the installation process. When I clicked Build nothing happened, but after fixing this it works.
See the screenshot below and the following url Texclipse installation and configuration - Part 2

Insert /usr/texbin
where it asks for the "Bin directory of TeX distribution". This will access the files at /usr/local/texlive/2011/bin
if you've got the 2011 version of MacTeX installed.
Best Answer
If a pdf is produced (apart from looking in the output folder, TexnicCenter will tell you the number of pages in the pdf file: if that's greater than 0 then the pdf file has been produced) then you may need to adjust the TexnicCenter settings to cope with Adobe Reader X. Full details of how to do this are at TexnicCenter and Adobe Reader 10 / X. Please also read the comments for extra information.