redirect do not work all the time

for some reason the redirect work some time and other time it just get the normal non mobile website. sometime it will redirect on mobile main domain only and not on blog page. my subdomain work.

If ime trying to redirect to mobile theme with htaccess, i get all king of redirection error.

my main site is http://www.tvqc.com/ my mobile is http://m.tvqc.com/

http://wordpress.org/extend/plugins/mobile-domain/