High Processor Usage at Idle

If I left SmartFTP idle, it will use up 99% of CPU without a reason. Even though I've already disconnected from the Remote host.

Screenshot
Image

System Details
+- System -----------------------------
Microsoft Windows XP Professional
Service Pack 2 (Build 2600)

CPU Speed : 1466 MHz
Total Memory : 753136 KB
Free Memory : 194624 KB

+- SmartFTP ---------------------------
Version : 2.0.997.4
Time Stamp : 2006-07-27 03:40:58
Platform : x86

+- Application DLL --------------------
sfFTPLib.dll : 1.5.8.23
SmartHook.dll : 1.0.2.1

+- Language ---------------------------
SmartFTP.exe : 2.0.997.4

+- System DLL -------------------------
unicows.dll : 1.0.4018.0
shell32.dll : 6.00.2900.2951 (xpsp_sp2_gdr.060713-0009)
shlwapi.dll : 6.00.2900.2995 (xpsp_sp2_gdr.060913-0010)
comctl32.dll : 6.0 (xpsp.060825-0040)
riched20.dll : 5.30.23.1221
schannel.dll : 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)

+- Internet Explorer ------------------
Version : 6.0.2900.2180

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