Hello all - I have seen a few posts on this but no possible solutions so thought I would start the discussion on possible fixes.

Observed issue:

On SOME sites up to 7.0.5 (have not tested 7.0.6 yet) the profile avatar upload does not work. 

Observations:

**Some of these observations may not be part of the issue

1. Site has to use the older ribbon control - I have seen sites with the ribbon control work though

2. Changing the skin on broken site to a skin that works on second site does not resolve the issue (infer this is not a skin problem)

3. Both sites have the same version of Telerik

4. Comparing source of 2 pages the relevant parts of upload stuff seem to be the same (except for things like folder id)

5. it doesn't seem to matter what the userid is (i.e. 'Users/096/96/96/' vs 'Users/001/01/1/')

6. Permissions appear to be correct since user can upload files through other means and then pick them in the drop down.

7. fiddler shows the following 

WORKING SITE

# Result Protocol Host URL Body Caching Content-Type Process Comments Custom
1 200 HTTP braindice.com /DesktopModules/internalservices/API/fileupload/postfile 157 no-cache; Expires: -1 text/plain; charset=utf-8 iexplore:8360
2 200 HTTP braindice.com /Portals/0/Users/010/10/10/pom.jpg 115,331 image/jpeg iexplore:8360
3 200 HTTP braindice.com /DesktopModules/internalservices/API/fileupload/loadfiles 116 no-cache; Expires: -1 application/json; charset=utf-8 iexplore:8360
4 200 HTTP braindice.com /DesktopModules/internalservices/API/fileupload/loadimage?fileId=405 36 no-cache; Expires: -1 application/json; charset=utf-8 iexplore:8360 

BROKEN SITE

# Result Protocol Host URL Body Caching Content-Type Process Comments Custom
1 404 HTTP mdpweb.net /DesktopModules/internalservices/API/fileupload/postfile 1,245 text/html iexplore:4108