[Typo3] problems with RTE and Text with image below/Text with image to the right

[Misza]

Hi there,

I've got a problem with adding an image in standard fields of a "Text with 
image below/Text with image to the right" module.
The appropriate fields are just below the RTE field (in backend user panel) 
and when using them to attach pictures to a page, the system loses its 
operability - the current page doesn't work at all!

What's wrong with it?
[Note: When adding an image directly by the RTE everything runs smoothly...]


Thanks!
Misza