This is XeTeX, Version 3.1415926-2.2-0.9997.4 (Web2C 2010) (format=xelatex 2011.3.29)  20 JAN 2012 21:39
entering extended mode
 restricted \write18 enabled.
 %&-line parsing enabled.
**Presen1.tex
(./Presen1.tex
LaTeX2e <2009/09/24>
Babel <v3.8l> and hyphenation patterns for english, dumylang, nohyphenation, lo
aded.
! Argument of \linespread  has an extra }.
<inserted text> 
                \par 
l.3 \linespread{
                1.5}
I've run across a `}' that doesn't seem to match anything.
For example, `\def\a#1{...}' and `\a}' would produce
this error. If you simply proceed now, the `\par' that
I've just inserted will cause me to report a runaway
argument that might be the root of the problem. But if
your `}' was spurious, just type `2' and it will go away.

Runaway argument?
! Paragraph ended before \linespread  was complete.
<to be read again> 
                   \par 
l.3 \linespread{
                1.5}
I suspect you've forgotten a `}', causing me to apply this
control sequence to too much text. How can we recover?
My plan is to forget the whole thing and hope for the best.

! Missing \endcsname inserted.
<to be read again> 
                   \protect 
l.3 \linespread{
                1.5}
The control sequence marked <to be read again> should
not appear between \csname and \endcsname.


! LaTeX Error: Missing \begin{document}.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
                                                  
l.3 \linespread{
                1.5}
You're in trouble here.  Try typing  <return>  to proceed.
If that doesn't work, type  X <return>  to quit.

Missing character: There is no . in font nullfont!
Missing character: There is no c in font nullfont!
Missing character: There is no l in font nullfont!
Missing character: There is no s in font nullfont!
Missing character: There is no - in font nullfont!
Missing character: There is no h in font nullfont!
Missing character: There is no @ in font nullfont!
Missing character: There is no @ in font nullfont!
Missing character: There is no k in font nullfont!
! Extra \endcsname.
\@onefilewithoptions ...\@currext -h@@k\endcsname 
                                                  \@empty \let \CurrentOptio...
l.3 \linespread{
                1.5}
I'm ignoring this, since I wasn't doing a \csname.

! Missing \endcsname inserted.
<to be read again> 
                   \protect 
l.3 \linespread{
                1.5}
The control sequence marked <to be read again> should
not appear between \csname and \endcsname.

Missing character: There is no c in font nullfont!
Missing character: There is no l in font nullfont!
Missing character: There is no s in font nullfont!
! Extra \endcsname.
\@ifl@aded ...er \ifx \csname ver@#2.#1\endcsname 
                                                  \relax \expandafter \@seco...
l.3 \linespread{
                1.5}
I'm ignoring this, since I wasn't doing a \csname.

! Missing \endcsname inserted.
<to be read again> 
                   \protect 
l.3 \linespread{
                1.5}
The control sequence marked <to be read again> should
not appear between \csname and \endcsname.

! Missing \endcsname inserted.
<to be read again> 
                   \protect 
l.3 \linespread{
                1.5}
The control sequence marked <to be read again> should
not appear between \csname and \endcsname.

! TeX capacity exceeded, sorry [input stack size=5000].
\size@update ->\baselineskip \f@baselineskip 
                                             \relax \baselineskip \f@linespr...
l.3 \linespread{
                1.5}
If you really absolutely need more capacity,
you can ask a wizard to enlarge me.

 
Here is how much of TeX's memory you used:
 6 strings out of 495727
 50 string characters out of 3189262
 258808 words of memory out of 3000000
 3243 multiletter control sequences out of 15000+200000
 3640 words of font info for 14 fonts, out of 3000000 for 9000
 14 hyphenation exceptions out of 8191
 5000i,0n,11p,132b,14s stack positions out of 5000i,500n,10000p,200000b,50000s
No pages of output.