PRO 4 troubles

After years on Version 2.X Basic I've upgraded to PRO 4.0.x
From now I am not able to set properties of the folder and to delete them or the files in them on the remote server.
I don't have the Properties a Delete commands on the right mouse menu'.
I've already cleared the SmartFTP register Key in Win Registry.
What can I do for having it working as usual?
I've upgraded to PRO for having the Encrypt possibility and it has, but the tutorial is quite different from reality, it would be better to update it.

Hello ..

Please post the system information from the menu: Help->About "System Information" dialog.

Thank you

Bug confirmed. A fix will be available in the next 24h.

+- System -----------------------------
Microsoft Windows XP Home Edition
Service Pack 3 (Build 2600)

CPU Speed : 3000 MHz
Total Memory : 511 MB
Free Memory : 93 MB

+- SmartFTP ---------------------------
Version : 4.0.1103.0
Time Stamp : 2010-05-03 19:49:22
Platform : x86
Id : 400034434
Maintenance : 2011-05-03
Days in use : 1009

+- Language ---------------------------

+- Internet Explorer ------------------
Version : 8.0.6001.18702

+- Winsock ----------------------------
Winsock : 2.2
These are the system informations
N.B. For Internet browsing I use Firefox (I belive it don't mind)