problem is solved - the module has some intern connection's. in this special case was the deactivated cache the troublemaker here the important connections::
- to use the intern image resizer, you have to activate the module cache first
- to use the gallery effect, you need at minimum two pics
- to show the arrows, you've to set the gallery and you need two pic's at minimum
i did'nt found any conflict's, if you use the WB-own jquery and mootools on the same page, but you can found a lot of reports for this in the web. Use browsertools (like console) or the sourcecode, to see , whats happend, if you have problems and try different module settings
Important: clear the intern cache from time to time. some users reports a size with 4 and more Gigabytes

. if you dont clear the cache for 10 years, you have there alle the pictures and thumbs from this 10 years inside - no matter, if you dont change the picture in your target folder, but if you change the pictures every week, you have tousend and tousends pictures there