[TYPO3-english] realURL and pageNotFoundOnCHashError

[Goku]

Hi to all,
I've a problem with pageNotFoundOnCHashError.
I tried to activate pageNotFoundOnCHashError option by INSTALL_TOOL, but 
realUrl stop working and redirect every page on 404/ pageNotFound_handling 
page, that I also activated.

Any idea?

Thanks

Goku