Failed rsync -- two different files considered up to date

[Craig Barratt]

Greger Cronquist writes:

> I've used rsync successfully for several years, syncing between two 
> Windows 2000 servers using daemon mode, but today I stumbled accross 
> something peculiar. I'm using cygwin with rsync 2.6.0 at both ends (the 
> latest available at this date) and I have a file that rsync considers up 
> to date even though both the md5 and a normal diff show differences. 
> I've tried calling rsync with several different options, most notably -c 
> for forcing checksum, but it fails to see a difference between the files.
> 
> Are there any things I should try or information that I can include? All 
> -vvv gives me is "uptodate".

How about -I (--ignore-times)?

Craig