27dba50b_stall_troubleshoot___e107_Wiki__Likely_fix
[Symptom] I get 'Error 404' - File not found errors [Possible cause] File access rights incorrect [Likely fix] 
The requirements vary dependent on host setup. Other than those files and directories which the install document says to set to '777', access rights of '644' should be OK for most files. Sometimes '744' or '755' is required. If the server is running phpsuexec, '600' will probably be enough.
Install troubleshoot - e107 Wiki
Likely fix