Hello Aston,
CKEditor in 6.2.1 is in fact quite buggy, especially for IE. The solution would be upgrading it
4.3.5 (from
4.0.3 which is in GA2).
Unfortunately this is not an easy modification and involves building whole portal from sources (There is a logic implemented in Liferay's ant build scripts that unpacks CKEditor and installs it into the bundle). Mayby it is possible to upgrade it with jsp/resources hooks but nobody provided such an instruction so far (or I don't know about it).
If you want to play with it, appropriate Jira issue is
LPS-43852. You can extract the commits and try to upgrade it manually.
Regards,
KG
