This problem has popped up again...
I have tried starting IE8 in no-addon mode, but there is no difference.
This is what I see when I view source.
<!-- CuteEditor CE_EmailBody Begin -->
<textarea cols="50" rows="14" name="CE_EmailBody" style="width: 700px; height: 670px;"> </textarea>
<!-- CuteEditor CE_EmailBody End c1 ms15.6253-->
Update: Everything works fine using FireFox.
The IE8 issue doesn't happen on the CuteSoft's website, just the ones that we have developed (using version 6.4.0.0 and .NET Framework version 1.1)