default PATH

[jt]

I upgrade to 1.5.19-4 and my default PATH has changed:

PATH is "inherited" from my WinXP environment as usual but it is not
prepend with "/bin" like before the upgrade, and is now appended with
".".
I cannot find where this happen (my .bashrc is unchanged).

Also, when I start cygwin (shell in rxvt), it throws me in "/usr/bin"
(which is a mount of "/bin") instead of my usual "~/".

I can fix all this by hand in my .bashrc but I want to have a clean
fix (avoid cygwin to do the bad job at the first place).
Can someone tell me where to look at?

Note: the upgrade also updated coreutils, readline and other minor stuff.

--
jt