Section not reachable

Why is it that a section I dare to name "Taal"  (Dutch for "Language") is banned? Cause I cannot get it to work on my site, I get a 404 error if I want to go to www.robvens.nl/site/taal.html . Another section, for example Software, is reachable without problems...
Is "Taal" a reserved word or something? ???

Please read the FAQ: www.sakic.net/support/faq/sef_advance/#19
Remove the replacement: å=>aa