Question : Problem: ssh works, ftp works, but sftp doesn't work

i have a standard debian-based lamp server running. ssh and ftp both work fine, but when i try to connect via sftp it doesn't connect. can anyone help?

OpenSSH_4.3p2 Debian-9etch3, SSH protocols 1.5/2.0, OpenSSL 0x0090803f
 - ProFTPD Version 1.3.1

Answer : Problem: ssh works, ftp works, but sftp doesn't work

... and /usr/libexec/sftp-server exists and is executable?
Random Solutions  
  •  Problem: Option an LG GDR8162B as a slave
    •
  •  Problem: USB distance - will a 5m extension cable work when the keyboard, mouse already have 1.5m lead?
    •
  •  Problem: License Management Console: You did not authenticate correctly
    •
  •  Problem: Commands to retrieve the specs from a Catalyst 2940 series switch
    •
  •  Problem: Microphone only recording my voice in "chipmunk" mode
    •
  •  Problem: Has anyone considered a way to "automaticly" populate "personal" contacts" in Outlook from a change made in "Public Contacts" ? Or to have that change show up in Personal Contacts
    •
  •  Problem: Hard Drive failed (windows) trying to recover it in linux.
    •
  •  Problem: Marked as Read only on BB not in Outlook with BES
    •
  •  Problem: Pause between songs on a media player
    •
  •  Problem: Connect via vpn/ terminal service to a windows 2008 server
    •
     
    programming4us programming4us