Error: SSL peer presented an invalid certificate | running on ARM-ubuntu-11.10

[Mark Doliner]

You could try to figure out why Pidgin thinks the certificate is
invalid by running with "pidgin -d" to show lots of debug output (I'm
a little surprised the error message you're seeing doesn't already say
why it's invalid).  The two most likely reasons I can think of are
either the clock on your ARM computer is wrong, or Pidgin still can't
find the CA certificates.