can't see the parameter labels (Prompt Group Text and parameter Name) when open crystal report on aspx page

Hi,

  I have several crystal reports (I installed crystal report 2011), when I open crystal report on my local PC, I can see parameter labels (Prompt Group Text and parameter Name)  however, when I open crystal report on my asp.net 4.0 application, it have problem to display the labels, It doesn't display any parameter labels(I attach screen shot, you can see it..)  Could you tell me how to solve this problem?

Thanks

Kelvin