I am a newbie at latex. I am trying to add URLs to my bibtex file and
have them appear in my pdf and link properly. It mostly works but when
I click on the link in the pdf file, the actual link breaks at the
underscore. For example, the text of my pdf is:

M. Idda, T. Takada, and T. Sudo, "Analysis of high-speed GaAs source-
coupled fet logic circuits," IEEE Transactions
and Techniques, vol. 32, no. 1, pp. 5-10, 1984,
http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=1132604.

(when I just pasted this, the url was actually:

http://ieeexplore.ieee.org/xpl/freeabs all.jsp?arnumber=1132604

The "_" is a space.)

However, the actual link is:

http://ieeexplore.ieee.org/xpl/freeabs

I tried deleting "\do\_" from the UrlBreaks in the url.sty file but
that did not fix it. I am using IEEEtran. Here is a sample bibtex
entry:

@Article{Idda_1984_5488,
  journal = {IEEE Transactions on Microwave Theory and Techniques},
  title = {Analysis of High-Speed {GaAs} Source-Coupled FET Logic
Circuits},
  number = {1},
  isbn = {0018-9480},
  pages = {5--10},
  year = {1984},
  volume = {32},
  author = {Idda, M. and Takada, T. and Sudo, T.},
  note = "\url{http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?
arnumber=1132604}"

\bibitem{Idda_1984_5488}
M.~Idda, T.~Takada, and T.~Sudo, ``Analysis of high-speed {GaAs}
source-coupled
  fet logic circuits,'' \emph{IEEE Transactions on Microwave Theory
and
  Techniques}, vol.~32, no.~1, pp. 5--10, 1984,
  \url{http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?
arnumber=1132604}.

I don't know where else to look. I don't know how the URL gets folded
into the pdf.

Oh, I am using pdflatex on a windows machine.

Thanks,

jr