yes i tried another sim as this was being rejected everytime... and i will wait for 4-5 days and try it agin..hope it will work...THANX for help bro..:-) will let u know when it works...and even my yappari is not synchronising the contacts, it says the contacst will be synchronised in the background, but its not.... i left it for indefinite time before checking it agin but it says the same thing...will it be resolved once i register???