zsh exits if I press the up/down arrow and hold it there (or do that very fast for some 100 lines)
zsh --version
zsh 4.3.10 (i386-pc-solaris2.10)
|uname -a
SunOS webstack 5.10 Generic_127128-11 i86pc i386 i86pc
My history contains about 150 commands
|cat ~/.zsh_history.webstack | wc -l
148.
