I found crash report from the program : ------------------------------------------------------ ------------------------------------------------------ ------------------ Crash Log Begin ------------------- Current System time: "2011-02-28 13:36:11" Build: 8.3.1.59808 Built @ Oct 10 2008 - 03:18:16 Memory Stats: FreeMemory: 156 MB, 968 KB, 0 B TotalUseableMemory: 164 MB, 0 KB, 0 B MaxMemory: 164 MB, 0 KB, 0 B ReservedMemory: 4 MB, 0 KB, 0 B ActualCacheSize: 1 MB, 74 KB, 640 B GarbageSize: 1 MB, 74 KB, 640 B -------------------------------------------------------------------------- Process Name PID BaseAddr ParentPID PrioBase -------------------------------------------------------------------------- iGO831_PC_110206.exe 0x00000020 0x00000000 0x00000008 0x00000002 -------------------------------------------------------------------------- -------------------------------------------------- Modules Name BaseAddr BaseSize -------------------------------------------------- iGO831_PC_110206.exe 0x00400000 0x00d76000 ntdll.dll 0x7bc10000 0x000ab000 KERNEL32.dll 0x7b810000 0x00180000 winmm.dll 0x7ecd0000 0x0008c000 user32.dll 0x7eba0000 0x00124000 gdi32.dll 0x7eb10000 0x00080000 advapi32.dll 0x7eab0000 0x00053000 version.dll 0x7eda0000 0x00012000 shell32.dll 0x7e8c0000 0x001e7000 shlwapi.dll 0x7e850000 0x0005a000 comctl32.dll 0x7e760000 0x000e6000 winex11.drv 0x7e570000 0x0009b000 imm32.dll 0x7e3b0000 0x00011000 uxtheme.dll 0x7e340000 0x00030000 ole32.dll 0x7e240000 0x000e6000 rpcrt4.dll 0x7e1c0000 0x00062000 -------------------------------------------------- -------------------------------------------------------------- Threads TID BasePrio DeltaPrio -------------------------------------------------------------- 0x00000021 0 0 -------------------------------------------------------------- Exception: 0xc0000005 At address: 0x004a1f11 Access violation reading address: 0xdededede 0x004a1f11 Global status: bInFocus: 1 bMouseDown: 0 bInLogic: 0 bInRender: 0 CurrentState[128]: GPS Pos: (0.000000,0.000000) Camera: pos:(0.000000,0.000000) rot:0 persp:0 zoom:0.000000 eng=0) State queue: ------------------- Crash Log End -------------------- ------------------------------------------------------ ------------------------------------------------------