Internal Error in Quartus II 13.1

Hi,

I am using Quartus II 13.1 in XP 64 and when I try to compile my design I have this error :

Internal Error: Sub-system: VRFX, File: /quartus/synth/vrfx/verific/database/net.cpp, Line: 2541

tmp

Stack Trace:

0xb51ab: VRFX_ELABORATOR::elaborate + 0x5ba9b

0xb4e90: VRFX_ELABORATOR::elaborate + 0x5b780

0xaaa08: VRFX_ELABORATOR::elaborate + 0x512f8

0xab1a5: VRFX_ELABORATOR::elaborate + 0x51a95

0x190222: VRFX_ELABORATOR::operator= + 0x80932

0x1908bc: VRFX_ELABORATOR::operator= + 0x80fcc

0x60316: VRFX_ELABORATOR::elaborate + 0x6c06

0x598fc: VRFX_ELABORATOR::elaborate + 0x1ec

0xd6f93: sgn_clear_check_ip_functor + 0x3a323

0xdac3f: sgn_clear_check_ip_functor + 0x3dfcf

0xdc525: sgn_clear_check_ip_functor + 0x3f8b5

0xa57d4: sgn_clear_check_ip_functor + 0x8b64

0xb5efc: sgn_clear_check_ip_functor + 0x1928c

0xb286a: sgn_clear_check_ip_functor + 0x15bfa

0xb5f4c: sgn_clear_check_ip_functor + 0x192dc

0xb286a: sgn_clear_check_ip_functor + 0x15bfa

0xb5f4c: sgn_clear_check_ip_functor + 0x192dc

0xba0dd: sgn_clear_check_ip_functor + 0x1d46d

0x10de2: sgn_qic_full + 0x152

0x128ed: qexe_get_command_line + 0x206d

0x1573e: qexe_process_cmdline_arguments + 0x59e

0x15851: qexe_standard_main + 0xa1

0xa7f8: msg_exe_fini + 0x58

0xaf3c: msg_exe_fini + 0x79c

0x1f14: MEM_SEGMENT_INTERNAL::~MEM_SEGMENT_INTERNAL + 0x194

0xb8bf: msg_exe_main + 0x8f

0x1969b: BaseProcessStart + 0x2b

End-trace

Quartus II 64-Bit Version 13.1.0 Build 162 10/23/2013 SJ Full Version

Does anyone can help me please?

Nicolas