Toolbar does not show specific size graphic

inkscape 的版本0.48.4 r9939
软件使用环境：
win7中文

bug描述：
打开软件后画图看不见图形的具体尺寸的变化。但是保存后重新打开又可以看见，一旦重新画图后有看不见工具栏中尺寸的变化；

Google translated:

inkscape 0.48.4 r9939
Software environment:
win7 Chinese

bug description:
After opening the software changes invisible graphic drawing specific size. But after saving and reopening can see, there are changes in the size of the toolbar invisible once again drawing;