Bug#434053: Same for me.

[aorefice]

i just upgraded to twinkle 1.2-r1 and i get the same bug (since 1.1 early days 
too).
Sound is working fine, but as soon as i press "bye", twinkle freeze, nothing 
can be done but killing it.

By the way, i'm on gentoo, and the strange think is that this happens on 32bit 
only, if i try with the same software configuration and versions (i mean 
kdelibs, qt and twinkle, of course), which changed over time, but on 64bit, 
twinkle runs great.