Uploading folder with few files failed

Hi All,

Previously, when i uploaded a folder with few files inside the folder by just click the folder and upload the whole folder with all the files will uploaded successfully. But now can't, please advice me what went wrong. which button did i accidentally click until it does.t work any more??

Another queries, what is the different among the format uploading files:

1) ASCII

2) Binary

3) Auto

4) Passive.

Which is the file type to click.

Hope you gurus can help me.

Thanks.

cheers.
flwong