I'm having a problem with my card reader.  It will recognise my old (3 years old) O2 sim card but will not recognise my Orange and O2 sims I currently use.  I was wanting to backup from one to the other to keep the phone books identical on both my phones.

Am I to take it the sim reader is faulty or is there an issue reading different sim cards?  To be fair each sim card is quite different in terms of contact layout (oval / square designs).