Registration Issue Fix

Hi,
I tried to register a few times at a friend's house, on two of his computers, and every time I tried, it didn't work. I'd fill out all of the registration fields, changing the timezone, filling out the captchas, answering the questions, putting in a referrer, etc. I had pretty much every field filled. Then it would go to this page http://sythe.org/register.php?do=addmember and turn blank white.
When I got home, I went on my computer and tried to register a couple times again. I tried on Internet Explorer, Chrome, Firefox and Safari in total, all with no success.
Then, I kept all of the fields either clear or unchanged if possible, and it worked.

TL;DR: When registering, leave everything blank/unchanged if possible.

I don't know if this problem's already been discovered or not, but if it hasn't, or if other people have been encountering it then hopefully this helps. I also don't know if this is the right section, I didn't see anything relating to site issues.