account not recognized

hey any one now why my account details are not bieng recognised on my pc but will recognise on others ? i cnt seem to log on on my new laptop but will let me at friends any one why that is ?any one who canplease helpcan you get back to me asap please thanx

can u plz report the problem and the steps you do a little clearer?
What u do, what Browser u use, what has been made, till which point do u get?