bug when trying to edit metilizer filter

Operating system: Windows (6.1 build 7601) Service Pack 1
Physical memory: 3323 MB
Number of processors: 2, available: 2
Processor info: Pentium® Dual-Core CPU E6500 @ 2.93GHz, ~2922 MHz

Filter Forge x86 4.002.26192.2226 Release, October 19, 2012 06:35 [12/14/2012 7:28:48 PM Eastern Standard Time]
[Controls::Control] Exception occured while processing window message 0x00000047(WM_WINDOWPOSCHANGED) (0x00000000 0x00125ABC) for window 00220476/00220476, control: <class Controls::Panel>@08C7E8D0.
[Controls::Control] Exception occured while processing window message 0x00000046(WM_WINDOWPOSCHANGING) (0x00000000 0x00126D44) for window 000E057A/000E057A, control: <class Controls::Form>@0012993C.
[Controls::Control] Exception occured while processing window message 0x00000111(WM_COMMAND) (0x00000138 0x001005E6) for window 00180326/00180326, control: <class Controls::Panel>@0344A9F8.
[Controls::Control] Exception occured while processing window message 0x00000202(WM_LBUTTONUP) (0x00000000 0x0011000C) for window 001005E6/001005E6, control: <class Controls::PushButton>@037E0138.
Exception caught at thread 00001CC4 'Application':
<class XFW::Kernel::SystemException> Access violation at address 00592E35 (read at address 0000003C).

<unknown file>(0) : <unknown function>()+0 at 00592E35 in Filter Forge x86.exe
CONTEXT_CONTROL: CS:EIP 001B:00592E35, SS:ESP 0023:00123168, EBP 00000000, FLAGS 00210246
CONTEXT_INTEGER: EAX 00123378, EBX 001233C4, ECX 00000000, EDX 00000000, ESI 00000000, EDI 08C7E8D0
CONTEXT_SEGMENTS: DS 0023, ES 0023, FS 003B, GS 0000