without knowing any needed information ....
we can only make random guesses
WHAT did you download ?
and HOW ?
or the install iso using firefox ( direct link)?
what iso ?
there are many
the 32 bit ?
the 64 bit ?
the default ?
the KDE spin?
as in the
or one of the "studio" images ?
then there is the hardware
is this a desktop?
a handheld "tablet"
and what is the hardware specs ?
the CPU is it a p4,i3,i5, ARM or a old ppc
and the ram ?
512 meg 1 gig ,4 + gig ? what
then HOW did you burn the iso to the dvd ?
and did you fallow the 13.1 install guide ?