Hi dmn,
I haven't seen that problem before and we'd have to debug it to know for sure but try this quick fix:
Edit: /cmsAdmin/3rdParty/tiny_mce/tiny_mce_gzip.php
Find this line (search for disk_cache): "disk_cache" => true,
And change true to false: "disk_cache" => false,
Let me know if that works for you.
Dave Edis - Senior Developer
interactivetools.com