Hello Grant Fish,
Thank you for contacting us.
I tested the described scenario and was not able to observe an issue. Please, could you send me your application. This will allow me to investigate the issue further and to find a proper solution. Thank you in advance.
I am looking forward to your reply.
the Telerik team
Q1’11 SP1 of RadControls for WinForms is available for download
; also available is the Q2'11 Roadmap
for Telerik Windows Forms controls.