proftpd-update

hey list, a few minutes ago i update my proftpd-package to rc3. now i always get the follwoing error-message with a "cnnection failed" response. syslog: "... unable to set uid to -2, current uid: 65534" i searched proftpd.org, but did not find anything about it. anybody out there got the same problems?! many thanks in advance, greets, daniel