I had no problems with 400 nexus.

Using nexus at 300 I get the same error as already stated by others : "Crash in NaO-fAwareness" in Wed.

A7.82 Commercial Wed V6.941
IntenseX Copper 1.0

OS Name Microsoft Windows XP Home Edition
Version 5.1.2600 Service Pack 3 Build 2600
OS Manufacturer Microsoft Corporation
System Name COMPUTER2
System Manufacturer HP Pavilion 061
System Model DY152A-ABU t590.uk
System Type X86-based PC
Processor x86 Family 15 Model 2 Stepping 9 GenuineIntel ~3400 Mhz
BIOS Version/Date American Megatrends Inc. 3.22, 19/03/2004
SMBIOS Version 2.3
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume2
Locale United Kingdom
Hardware Abstraction Layer Version = "5.1.2600.5512 (xpsp.080413-2111)"
User Name COMPUTER2\Owner
Time Zone GMT Standard Time
Total Physical Memory 1,024.00 MB
Available Physical Memory 716.56 MB
Total Virtual Memory 2.00 GB
Available Virtual Memory 1.96 GB
Page File Space 3.83 GB
Page File C:\pagefile.sys


Hope that helps