I have a site. It works.
I amended the site to stop using bloated code, and implemented Jquery corners, as well as some "cool" gradients.
I then implemented some php code to stop spammers (html entities).
The spam stopped, I was happy.
However, the login form stopped working too. It works in Firefox, but not Internet Explorer. I'm not quite sure why this is, but I need to know so that I can get any bad coding practices out of my system.
I really don't have a clue where to start looking with this or even what to Google.