can delete .jpg but cannot delete .pdf

[Foton]

Hi,
When I upload a .jpg file with the filemanager I can delete it with the filemanager.
But when I upload a .pdf file I cannot delete it anymore. I have to delete it with a FTP-client.
Why can I not delete it with the filemanager?
Or is there a workaround for this, because the adminuser cannot ftp to the site.

[Foton]

Folders en files have 777 and still CMSMS returns with ''No real file given'' , while the file is still on the list... 

[KO]

Do you have any special characters on that pdf file name you cannot delete? Like "&"or something else. This will cause you problems.

Keijo

[Foton]

There was a ''+'' and  a ''-'' in the name. I changed the name via FTP to a straight name, it popped up in the Filemanager and there I could delete the file.
So probably we can not use any special characters, just plane text...
Thanks for the tip Keijo !