Hi Jeff,

Thanks for your posting!

Which type of C# application do you use the DHtml Edit control? I have
created a sample empty winform application, then I  add the DHtml Edit
control as the following steps:
Right-click the toolbox -> "Add/Remove Elements..." -> "COM Controls" ->
"DHTML Edit Control for IE5".

After adding the DHtml Edit control, I load the html to the control with
the code:
private void Form1_Load(object sender, System.EventArgs e)
{
    this.axDHTMLEdit1.LoadURL("http://msdn.microsoft.com");
}

After running the application, the Dhtml Edit control works well with fully
editable function.

Also, my test machine is WinXP SP2 installed, VS.net 2003.

So it seems that it is not a general problem with SP2. Hope to get more
information from you to reproduce out your issue.
====================================================================
Thank you for your patience and cooperation. If you have any questions or
concerns, please feel free to post it in the group. I am standing by to be
of assistance.

Best regards,
Jeffrey Tan
Microsoft Online Partner Support