well i hav LG shine(ke970) n i hav problem visitin websites (i.e facebook)?

[hania s]

i can visit websites like Google (NSDQ: GOOG) n a few other websites bt i can't log onto facebook or check my mails. leme give u an example...when i open www.facebook.com it opens then i type my email address n my passord n click LOG IN. my mobile immediately displays "would u like to establish secure connection? okay cancel? ' n when i click OK it displays "no matching CA certificate was found. do you want to continue anyway?" i click OK n it displays "security error". i knoe that da problem is arising due to ca certificats so can u guide me where to get them from or how to fix this
thanku in advance