Explorer.exe crash several times

Hi,

I'm new user of SmartFTP Client 4.0.1091.0. My explorer crash several times:

Image

Image

System information:
+- System -----------------------------
Microsoft Windows XP Professional
Service Pack 3 (Build 2600)

CPU Speed : 3200 MHz
Total Memory : 2047 MB
Free Memory : 2047 MB

+- SmartFTP ---------------------------
Version : 4.0.1091.0
Time Stamp : 2010-03-20 21:13:42
Platform : x86
Id : 400123725
Maintenance : 2011-03-25
Days in use : 145

+- Language ---------------------------
en-US

+- Internet Explorer ------------------
Version : 6.0.2900.5512

+- Winsock ----------------------------
Winsock : 2.2


Thanks.

Regards,
Kimbo