RichEdit

Due to a problem limitation of Edit Ctrl ,Someone told me that Edit Ctrl can not take more than 64k text in it but Rich Edit can not...
Switched my control to Richedit from edit ctrl and added a member variable m_text associated with that control but now the dialogue does not pop up.....
Is there anything else i have missed out for this control?

Tried all offered solutions but one ,the simplest one succeeded...
thanks to Todd Jeffreys
The real answer is this. Call AfxInitRichEdit() in your CWinApp::InitInstance