cf8 report builder characterEncode ?

HI,all

I am using win xp sp3/cf8.01, cf8 report builder,mssql2k5,IE6

There is the following requirement in a program: 

When there is Chinese character in the label of report builder, but not get Chinese from the Database, as the picture illustrate below:

When the label in the Report is Chinese word, the Chinese words will replace by “?” if the Report generated into pdf file.

The final result as the following picture shows:

If press F8 button, the situation is below:

If I change the pdf character Encoding into identity-H, the problem still cannot be solved. Is there anyone who can tell me why and how to solve the problem? Thanks very much!