[TYPO3] Problem editing html files in the file module

[Peter Gallagher]

I cannot edit the html files that I use for my templates. The file 
module will only return a blank page in the frame. If I try to upload 
new files to over-write them the files are not uploaded, the file module 
returns a blank page.

Please note that I can upload other files, small ones and larger files, 
but the two html files (8k) will not upload. Other files of the same 
size will upload fine. It is just driving me crazy.

Error in IE 6: Action Canceled. Internet Explorer was unable to link to 
the Web page you requested. The page might be temporarily unavailable.

I need some help because I cannot ftp the files to the server because of 
permissions that cannot be changed via ftp and I cannot edit the files 
in typo3!

typo3: v4.0.2

I have the setting doNotCheckRefer = 1 because I was unable to upload 
any files.