[texworks] Message from TeXworks user

[Mario Manissero]

Hello Folks

I know that this is not a news but i'm became creasy around this problem.

Schenario:
Two mac os pc: first (macbook pro) with texworks installed and works fine

Second bough years later (iMac), has the same applications because using the same user, the new mac make clone user folder. At the end I have two equal pc, on the paper. 

Problem:
On the older all works fine, as i said before, but the problem is on the newer where the export in pdf doesn't works. "! LaTeX Error: File `article.cls' not found."
This messages come out from compiling the same basic latex template.
I tried to instal other latex sw but they didn't works with the same errors. Seems that the library are not available.
Due to that I have reinstalled many revisions of texworks but the situations doesn't change.
Can someone help me to make ok the second pc with texworks?


PC OK
----- configuration info ----- 
TeXworks version : 0.4.3r858 (personal)
Install location : /Applications/TeX/TeXworks.app
Library path     : /Users/mario/Library/TeXworks/
pdfTeX location  : /usr/local/texlive/2011/bin/x86_64-darwin/pdftex
Operating system : Mac OS X 10.7.5 (Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64)
Qt4 version      : 4.7.3 (build) / 4.7.3 (runtime)
------------------------------

PC KO

----- configuration info -----
TeXworks version : 0.4.3r858 (personal)
Install location : /Applications/TeXworks.app
Library path     : /Users/mario/Library/TeXworks/
pdfTeX location  : /usr/local/texlive/2011/bin/universal-darwin/pdftex
Operating system : Mac OS X 10.7.5 (Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64)
Qt4 version      : 4.7.3 (build) / 4.7.3 (runtime)
------------------------------

Cheers
Mario