Classifieds: Can't crop images

Hi, I'm not able to correctly crop images in the Classifieds plugin. In both IE8 and Chrome (WinXP) I submit the image to upload, and on the following screen the crop function comes up. The focus of the crop tool is to the upper left of the image, and there are actually two panes available. See attached. Weird. When I try to crop the interface whacks out, it's near impossible to select any part of the image to crop. If I simply submit 'crop' it does ok and presents an image, but I know this will be a HUGE member support issue.