This happns all the time.. I don't know why, but it did it for my last private server also..
Module Name: C:\Program Files\Gravity\RagnarokOnline\heRO.exe
Time Stamp: 0x43c2202b - Mon Jan 09 02:34:51 2006
Exception Type: 0xc0000005
0x00506320 heRO.exe
0x0058d4b3 heRO.exe
0x004eafc4 heRO.exe
0x00635bef heRO.exe
0x00655d6a heRO.exe
0x7c816fd7 kernel32.dll
eax: 0x00000000 ebx: 0x0237e010
ecx: 0x00000000 edx: 0x00724ff0
esi: 0x00000000 edi: 0x00000000
ebp: 0x0012fbfc esp: 0x0012fbe8
stack 0012fbe8 - 0012ffe8
0012FBE8 : 74 C8 61 00 FF FF FF FF 01 00 00 00 10 E0 37 02
0012FBF8 : B8 A3 74 00 14 FC 12 00 B3 D4 58 00 72 4A 72 00
0012FC08 : 9A 4A 72 00 60 4A 72 00 1B 00 00 00 38 FC 12 00
0012FC18 : C4 AF 4E 00 68 4A 72 00 D0 FE 12 00 80 B3 69 00
0012FC28 : 00 00 00 00 B0 FF 12 00 D6 CF 66 00 FF FF FF FF
0012FC38 : 34 FF 12 00 EF 5B 63 00 00 00 00 00 10 E0 37 02
0012FC48 : 00 00 00 00 00 00 00 00 00 90 FD 7F 00 00 D0 00
0012FC58 : 78 74 D0 00 4C FC 12 00 53 00 00 00 88 02 00 00
0012FC68 : 00 00 00 00 72 01 00 00 A0 FE 12 00 38 15 91 7C
0012FC78 : 96 15 91 7C 70 74 D0 00 68 01 D0 00 70 74 D0 00
0012FC88 : B8 FC 12 00 77 7E 91 7C 00 00 D0 00 38 77 D0 00
0012FC98 : 70 74 D0 00 57 00 00 00 00 00 D0 00 00 00 D0 00
0012FCA8 : B0 02 00 00 78 01 D0 00 19 01 00 00 1D 01 00 01
0012FCB8 : A4 FE 12 00 0C 7C 91 7C 00 00 D0 00 01 00 00 00
0012FCC8 : F5 7B 91 7C 08 06 D0 00 B0 7B 91 7C 00 00 00 00
0012FCD8 : C0 02 00 00 78 74 D0 00 78 74 D0 00 00 00 00 00
Launch Info
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
Job : Novice
In my mind I hear the game saying this to me,"Gotcha Bitch!"