XH "Content Encoding Error"

[AFGadd]

Any ideas what happening here???

I'm trying to open the editor in Firefox and I get this message in the editor space

Content Encoding Error

The page you are trying to view cannot be shown because it uses an invalid or unsupported form of compression.

* Please contact the web site owners to inform them of this problem.

If I use IE I have no problem???

Also no problem with another URL on the same server with Firefox???

Not sure what to do???

[AFGadd]

I've just re-uploaded "FCKeditor" and the problem's gone away.....

Must assume that the editor became corrupted???