Here's how it happens. Run startxwin.bat, which runs xterm, which invokes bash, which sources .bash_profile. My .bash_profile ends with
eval `ssh-agent` echo foo ssh-add echo bar
I get
Agent pid XXXX foo
... and then it just sits there. I can ctrl-c and then run ssh-add manually, and it takes my passphrase just fine.
If I do source .bash_profile, there's a miniscule delay that shouldn't be there either, and then ssh-add comes up just fine.
If I revert to cygwin 1.5.12, the delay disappears.
