The easiest way is to observe this live
Homepage footer (looks good): www.fishingreports.com
Screwed up footer: www.fishingreports.com/users/register
Whenever I export the code from /users/register onto another page like this: www.fishingreports.com/texas/lake-texoma
you can see the footer also goes haywire. I'm sure I'm missing something here that keeps the rest of the page in line.
Something interesting to note is that when there is OTHER STUFF on the page the footer acts fine, but when the form is the semi-last thing on the page the footer screws up. Compare these two pages:
http://www.fishingreports.com/washington/lake-saint-clair (good) http://www.fishingreports.com/washington/lake-leota (bad footer!)
Thanks!