codeigniter not running in xampp 1.7.4 unable to load data from database

[eluser]puneettaneja_88[/eluser]
my codeigniter pages n connectivity is working fine with xampp 1.7.3 for windows but when i tried the same project on xmapp 1.7.4 for windows and xampp 1.7.2 for linux

http://localhost/ibira/index.php/pages
it works (simple html form )

on submit
when database connectivity come it does not give any output

above is working fine in xampp 1.7.3