i cannot enter the security on my Mxit login but i can on the registration, i blacks out that screen and restarts my phone when i try entering text on the security code text box but the one that's on the registration side works just fine. please tell me what to do. i don't want to change my no.

Please try the following, open your phone's default wap browser, clear the browser's cache, turn off your phone, turn on your phone, now try Mxit again.

@Da Twista impressive quick reply,i also had the same problem try out different but no succeed,just try out yours idea succeed.