or download this
cpan> install GD
Fetching with LWP:
http://cpan.strawberryperl.com/authors/01mailrc.txt.gz
LWP failed with code[500] message[Can't connect to cpan.strawberryperl
+.com:80]
Warning: no success downloading 'C:\Perl5.18\cpan\sources\authors\01ma
+ilrc.txt.gz.tmp11056'. Giving up on it.