YAxis title can't show in the Telerik 5.0 Radchart

[Haoyou]

1.  

   Gentlemen,
   
   I upgrade the Telerik version from 4.0 to 5.0 (Replace 4.0 dll with 5.0 dll).
   Radchart was showing well before upgrading, but after that the YAxis title can't show.
   Do you have any suggestion about that?
   
   Thanks&Regards,
   Ge