Informix 9.40 TC1 crashing on win2k

Hi all, I have a problem with IDS 9.40TC1 crashing on win2k - i'm trying to use it with Weblogic 7.01 and the Informix JDBC XA driver (2.21JC5). If i use the non-XA driver then everything seems fine, but once i use the XA driver and start adding transaction attributes to my EJBs, informix starts crashing. sorry, i am a bit clueless about this. the following is the top of the af.4140553 file: Exception happened at address=0x004a6ed5 Exception is EXCEPTION_ACCESS_VIOLATION (code 0xc0000005) Attempt to read location 0x58 Register Contents: EAX=0x0cfec630 ESI=0x0d03f060 EFLAGS=0x00010206 EBX=0x0cfde8b8 EDI=0x00000000 EIP=0x004a6ed5 ECX=0x00000000 ESP=0x0d031c1c EDX=0x0cfec558 EBP=0x0d031cf0 Call Stack for thread #44 - sqlexec 0x004a6ed5 (oninit)_udr_execute (0xcfec558, 0xcfde8b8, 0xd031d60, 0xd01828b) ebp=0xd031cf0 0x004dfac9 (oninit)_prmt_hostvar (0xd03f060, 0x1, 0x0, 0xcfb62b0) ebp=0xd031e34 0x004df02d (oninit)_sq_bind (0x7, 0xcfe53b8, 0x5, 0xcfba348) ebp=0xd031f90 0x0049203c (oninit)_sqmain (0x0, 0x0, 0x0, 0x0) ebp=0xd031fbc 0x00a14334 (oninit)_startup (0x0, 0xd032670, 0xd032058, 0x670) ebp=0xd031ff8 Frame Pointer is NULL! Unable to continue stack trace back 15:15:16 15:15:16 Informix Dynamic Server Version 9.40.TC1 Software SerialNumber AAA#B000000 15:15:16 Assert Failed: No Exception Handler 15:15:16 Who: Session(24, gema@medusa.agentis.net, -1, 00000000) Thread(44, sqlexec, 0, 1) File: mtex.c Line: 908 15:15:16 Results: Exception Caught. Type: MT_EX_OS, Context: mem 15:15:16 Action: Please notify Informix Technical Support. 15:15:16 Stack for thread: 44 sqlexec base: 0x0d021000 len: 69632 pc: 0x009fc95c tos: 0x0d031134 state: running vp: 1 0x009fc203 (oninit)_afhandler(0x3, 0xcb7728, 0xd031734, 0xcb41510) 0x009fbdad (oninit)_afcrash_interface(0xcb7728, 0xd031734, 0xcb41510, 0xcb7740) 0x00a0d801 (oninit)_NT_mt_excep_filter(0xd031868, 0x1, 0xb4d3e3, 0xd031870) 0x00a14347 (oninit)_startup(0x0, 0xd032670, 0xd032058, 0x670) 0x00000000 (*nosymtab*)0x0 15:15:16 See Also: C:\\tmp\\af.4140553, shmem.4140553.0