Should be fixed now.
The authors of the ignore module appear to have forgotten a little detail in how PHP accesses variables from URL/form data, and how it changed the default from PHP 4.1 and 4.2. As the previous server was installed with 4.1 originally, the defaults in the config file from that period remained in effect, even up to the current version on that server. This one started at 4.3.4, and therefore is using those defaults, as I tend to agree with them, and it's been almost two years since that change was made. Portable PHP code shouldn't make the assumption they did.