FTP - error message when all files are downloaded

[Dreamer]

- download any folder from FTP in background
- change path/tab on the other pane (perhaps not needed)
= when all files in folder are downloaded, this error is displayed:

"An established connection was aborted by the software in your host machine."

- try to enter any FTP folder now
= it doesn't work, just the same error message is in the log area:

"DirectoryListing-ChangeCurrentDir: (10053) An established connection was aborted by the software in your host machine."

When I restart FC it works good.

I don't have this problem in Filezilla for example.

Using the latest 2009.02 donor version, Windows Vista SP2.