PHP + Cookies Help!

[Sabolin]

I'm starting to teach myself some PHP/cookies/mysql fun stuff and I'm having some trouble.

I have this site that requires the user to log in using mod_rewrite. When the PHP login script runs, I added a part where it sets a cookie containing the username, then it starts a session and redirects the browser to the main page after login. On this main page, I'm trying to retrieve this cookie containing the username and output it, but I can't seem to retrieve it. The cookie exists, I can see it in the temporary internet files folder and it does contain the login username. When I checked isset() on the cookie, it failed. When I change my script to print_r($_COOKIE) I see a few other cookies but the cookie I set during login doesn't show up in there (but it's still visible in the TIF folder).

Any ideas? Google searches aren't turning up any answers to this problem.

Thanks.

edit-
btw my output code to view the cookie is simply:
echo $_COOKIE['cookiename'];

[Sabolin]

Nevermind, the login script itself sets some cookies w/ the optional path and domain parameters so I copied those from one of those cookies and added it to mine and now it is working correctly.