We've released a few internal builds after the official release, which address the issues you experience. The latest version is 2012.3.1106.20, so you'll need to update all assemblies except Telerik.Reporting to this version.
You can download the latest update using the Telerik VS Extensions. To do this start the Upgrade Wizard and click on the Download button (screenshots attached).
Additionally, you can download the latest internal build manually. In order to do this, please, follow the steps bellow:
- Open the Your Account section on our web site
- Click Manage Products
- Click RadControls for WinForms
- Click Download Installer and Other Resources
- You will see all packages available for download
- Download the latest hotfix: Telerik.RadControls_For_WinForms_2012_3_12_1106_Dev_hotfix.zip
I hope this will solve the issue. Let me know if the problem persists.
the Telerik team