TinyMCE error - JS error

I am getting the following error in the tinmce gzip js, which is not letting me load TinyMCE. ANy ideas?

o is not a constructor
(no name)()tiny_mce_gzip.js (line 179)
(no name)()tiny_mce_gzip.js (line 179)
(no name)()tiny_mce_gzip.js (line 179)
allDone()tiny_mce_gzip.js (line 179)
(no name)([Object state=0, Object state=0, Object, 2 more...], function(), undefined)tiny_mce_gzip.js (line 179)
loadScripts([Object state=0, Object state=0, Object, 2 more...], function(), 
undefined)tiny_mce_gzip.js (line 122)
(no name)()tiny_mce_gzip.js (line 179)
(no name)(ask(), undefined)tiny_mce_gzip.js (line 179)
loadScripts()tiny_mce_gzip.js (line 179)
(no name)(1)tiny_mce_gzip.js (line 179)
(no name)("edit-body")tiny_mce_gzip.js (line 179)
(no name)(["edit-body"], function(), ["edit-body"])tiny_mce_gzip.js (line 179)
(no name)()tiny_mce_gzip.js (line 179)
(no name)(undefined)tiny_mce_gzip.js (line 179)
(no name)(function())tiny_mce_gzip.js (line 179)
(no name)([function(), function()], function(), [function(), function()])tiny_mce_gzip.js (line 179)
(no name)()tiny_mce_gzip.js (line 179)
[Break on this error] eval.call(w, co);