When i try to render a certain project file i get an error

This file renders fine when it's on maya software render,but when I use mental ray renderer it gives me an error.the following is in the crash log.not sure what it means.//=====================================================
Maya Crash Report
//=====================================================

Exception code: C0000005: ACCESS_VIOLATION - illegal read at address 0x00000011
Fault address: 00000011 in C:Program FilesAutodeskMaya2011binmaya.exe
0000:00000000 Logical offset (see .map file for location)

Registers:
EAX:38045A88
EBX:37FAAEC1
ECX:38045868
EDX:00000011
ESI:37D242B8
EDI:00000000
CS:EIP:001B:00000011
SS:ESP:0023:01648CB8 EBP:259E3CB0
DS:0023 ES:0023 FS:003B GS:0000
Flags:00010202

Call stack:
(0) section:offset Address Frame
0000:00000000 0x00000011 0x00000000
(1) section:offset Address Frame
0001:000B393F 0x2761493F 0x00000000
Module: C:Program FilesAutodeskMaya2011binplug-insMayatomr.mll (-exported-)
(2) section:offset Address Frame
0001:0006DAB7 0x275CEAB7 0x00000000
Module: C:Program FilesAutodeskMaya2011binplug-insMayatomr.mll (-exported-)
(3) section:offset Address Frame
0001:0010AE4C 0x2766BE4C 0x00000000
Module: C:Program FilesAutodeskMaya2011binplug-insMayatomr.mll (-exported-)
Location: initializePlugin + 0x448AC bytes
Decl: initializePlugin
Next frame pointer is missing - is /Oy turned on in this module?

//crash file = C:UsersmikhailAppDataLocalTempMayaCrashLog120412.1837.log
//version = 2010.03.19.0014
//cut = Fri 03/19/2010, 201003190014
//last tool: renderWindowSelectContextItem
//====================================================
//panel with focus: renderWindowPanel1
//visible panels:
// modelPanel4 renderWindowPanel1
//====================================================
//Memory usage:
// 1589.770 Mb Free Memory
// 2048.000 Mb Free Swap
// 472.605 Mb Current
// 16.713 Mb Arrays
// 0.131 Mb arguments
// 37.500 Mb MEL
// 0.344 Mb Pixel Map
// 1.000 Mb NURBS AG
// 5.863 Mb POLY_DRAW_CACHE_DATA
// 0.335 Mb POLY_DRAW_CACHE_STATIC_DATA
// 0.313 Mb Data Blocks
// 0.124 Mb Transforms
// 3.333 Mb Render Cache
//====================================================