NVidia GeForce 8400 GS that ran EQ2 on 1 PC won't run it on another

[Mairin]

<p>I've been playing for at least a year on an NVidia GeForce 8400 GS on an older PC. With each update, EQ2 gets slower and slower and crashes more and more, so I bought a new (well, new to me) PC (Dell Dimension 5150 running XP). I pulled the card from the old PC and put it in the newer one, and installed the proper drivers. I made sure I was running DirectX 9.0c, then I ran DxDiag to make sure all the tests passed.. But when I went to run EQ2, a little while after it said PLAYING, it popped up the error</p><p>G:liveeq2frameworkcoredevicesDirectXRenderDevice.c pp(1999):Failed to create D3D device for NVIDIA GeForce 8400 GS 00c399aa</p><p>'Sup w/dat?</p>

[Mairin]

<p>------------------System Information------------------Time of this report: 5/4/2012, 00:43:13       Machine name: USER-9A6FD92AF9   Operating System: Windows XP Home Edition (5.1, Build 2600) Service Pack 3 (2600.xpsp_sp3_gdr.111025-1629)           Language: English (Regional Setting: English)System Manufacturer: Dell Inc.                       System Model: Dell DM051                                  BIOS: Phoenix ROM BIOS PLUS Version 1.10 A04          Processor: Intel(R) Pentium(R) 4 CPU 3.00GHz (2 CPUs)             Memory: 2038MB RAM          Page File: 475MB used, 3455MB available        Windows Dir: C:WINDOWS    DirectX Version: DirectX 9.0c (4.09.0000.0904)DX Setup Parameters: Not found     DxDiag Version: 5.03.2600.5512 32bit Unicode</p>