I just noticed that (under wbb 4.1 beta 4) Gallery plugin doesn't display image preview in its start page. Needless to add that I went through the settings and made sure all is configured correctly. I have other forums under 4.0.9 and I don't have this problem. As far as I can tell, those who have been testing wbb 4.1 beta 4 were able to install Gallery and see the preview slide-show in Gallery start page without issues.
I don't know what I'm missing or doing wrong. I'm not sure if this a problem with my own installation or a more general issue due to beta 4 > Gallery 2.0 compatibility.
Any help or suggestion will be highly appreciated. Thanks.