Email class bug - HTML problem [SOLVED]

[eluser]dootzky[/eluser]
yup, you're right dude, this project is over 6 months old, so I was using 1.5.x back then.

could I upgrade only the email library from 1.7, without jeopardizing the rest of my 1.5 version, which is now live on pretty large and active site?

I mean, if I download CI 1.7.1, and copy the file "/system/libraries/Email.php", to my server, will that work? :\
what do you think? is it worth a shot? is that safe?

thanks again for your help and forum activity!
dootzky