[Nel] about 3dmax 4.2 plugin

[truename]

i get the 3dmax4.2 plugin compiled successful after long hours.(vc6 + win2000 + 
3dmax4.2)
i placed all plugins and dll to plugin directory of max.
i also placed all the scripts in 3dsmax script directory.
now when i go into 3dmax 4.2,i build four quad patchs and set the position and 
name according to 
"http://perso.club-internet.fr/neuser.jp/projets/Nevrax/HowTo3DSMAX_BuildZone.htm";
now...when i set the tilebank and selected the nel patch paint on the Geometry 
selection,
and I click the Paint button. 
As soon as this happens, I receive an ASSERTION
FAILURE.

It READS:
ASSERTION FAILURE
In file:'c:\3dsmax4\maxsdk\include\tab.h'
Line: 117

//------------------------------------------------------------------
vc debuger callstack:
//------------------------------------------------------------------
NELPAINTPATCH! WhereIsTheEdge(int,int,class PatchMesh const &) + 177 bytes
EPM_PaintCMode::DoPaint() line 3695 + 26 bytes
PatchOpsDlgProc(HWND__ * 0x0092046a, unsigned int 0x00000111, unsigned int 
0x00000431, long 0x001b108a) line 96
CORE! 00a6dabe()

//------------------------------------------------------------------
log information:
//------------------------------------------------------------------
A failed assertion occurs
ProcName: 3dsmax.exe
Date: 2002/12/06 18:04:47
File: E:\cvs\nevrax-new\tools\3d\plugin_max\nel_patch_lib\nel_patch_mesh.cpp
Line: 1281
Reason: "0" 

Callstack:
-------------------------------
<NoModule>!0x77E789D1: NoSymbol
<NoModule>!0x1994B7EF: NoSymbol
nelpaintpatch!0x1994A359: void NLMISC::CLog::displayString
<NoModule>!0xB4F000A: NoSymbol
-------------------------------

Log with no filter:
-------------------------------

Log Starting [2002/12/06 18:04:42]
2002/12/06 18:04:42 3dsmax.exe DBG 1620 path_mesh_alloc.h 71 : Allocate, 6 
blocks 5 max

2002/12/06 18:04:42 3dsmax.exe DBG 1620 path_mesh_alloc.h 71 : Allocate, 6 
blocks 5 max

2002/12/06 18:04:42 3dsmax.exe DBG 1620 path_mesh_alloc.h 71 : Allocate, 6 
blocks 5 max

2002/12/06 18:04:42 3dsmax.exe DBG 1620 paint_data.cpp 180 : 0.006931
2002/12/06 18:04:45 3dsmax.exe DBG 1620 path_mesh_alloc.h 71 : Allocate, 8 
blocks 7 max

2002/12/06 18:04:45 3dsmax.exe DBG 1620 path_mesh_alloc.h 71 : Allocate, 8 
blocks 7 max

2002/12/06 18:04:45 3dsmax.exe DBG 1620 path_mesh_alloc.h 71 : Allocate, 8 
blocks 7 max

2002/12/06 18:04:45 3dsmax.exe DBG 1620 paint_data.cpp 180 : 0.018898
2002/12/06 18:04:45 3dsmax.exe DBG 1620 path_mesh_alloc.h 71 : Allocate, 7 
blocks 8 max

2002/12/06 18:04:45 3dsmax.exe DBG 1620 path_mesh_alloc.h 71 : Allocate, 7 
blocks 8 max

2002/12/06 18:04:45 3dsmax.exe DBG 1620 path_mesh_alloc.h 71 : Allocate, 7 
blocks 8 max

2002/12/06 18:04:47 3dsmax.exe AST 1620 nel_patch_mesh.cpp 1281 : "0" 
-------------------------------
everybody can help me?
=============================================================
????????????????????????????-???????? ?????????????????? http://dating.163.com/
????:??????????Q????3D??????????????http://pt.163.com
????????????????????????            http://popme.163.com/freemail/index.html