Smart FTP File order

My files are listed in my folder as the example below:

1
10
11
2
20
3
30

I would prefer them to be listed as:

1
2
3
4
5
etc

I have searched smart FTP for any settings concerning this but have found none. Is this a smart FTP issue or my server? Has anyone else noticed this?

Thanks!

The listing cannot be sorted the way you want it with SmartFTP. You wil find the same "problem" in MS Windows Explorer.

Regards,
-Mat