[TYPO3-english] Cant add image through rte by pressing "typo3 image"

[Olga Zhuravleva]

I want to add image through Rich Text Editor: typo3 image.
By pressing button "typo3 image", nothing happens. No window to add an image.

TYPO3 Ver. 4.5.2
rtehtmlarea 	2.1.6
dam 	1.2.1