I'm having the same problem, here's the tail-end of my log file:
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[Mon Mar 03 14:44:14 2003]00523: StartWorldDisplay: freportw
[Mon Mar 03 14:44:14 2003]00524:Load world point 1 (objects)
[Mon Mar 03 14:44:14 2003]00525:Load world point 3 (D:\Program Files\EverQuest\freportw.s3d)
[Mon Mar 03 14:44:14 2003]00526:Load world point 5 (3aded18, 16b43098, 16b13e90, objects.wld).
[Mon Mar 03 14:44:14 2003]00527:Successful read of world.
[Mon Mar 03 14:44:14 2003]00528:Load world end (1).
[Mon Mar 03 14:44:15 2003]00529: StartWorldDisplay: freportw
[Mon Mar 03 14:44:15 2003]00530:Load world point 1 (lights)
[Mon Mar 03 14:44:15 2003]00531:Load world point 3 (D:\Program Files\EverQuest\freportw.s3d)
[Mon Mar 03 14:44:15 2003]00532:Load world point 5 (3aded18, 16b43818, 16b13e90, lights.wld).
[Mon Mar 03 14:44:15 2003]00533:Successful read of world.
[Mon Mar 03 14:44:15 2003]00534:Load world end (1).
[Mon Mar 03 14:44:15 2003]00535: StartWorldDisplay: freportw_lit
[Mon Mar 03 14:44:15 2003]00536:Load world point 1 (freportw_lit)
[Mon Mar 03 14:44:15 2003]00537:Load world point 3 (D:\Program Files\EverQuest\freportw_lit.s3d)
[Mon Mar 03 14:44:15 2003]00538:Start world 5: Camera locations set...
[Mon Mar 03 14:44:15 2003]00539:Start world 6: Lighting enabled...
[Mon Mar 03 14:44:15 2003]00540:Start world 7: Executed some more code, and stop reading these!
[Mon Mar 03 14:44:15 2003]00541:Start world 8: Particles, DynamicLOD, Yon, and MIDI set...
[Mon Mar 03 14:44:15 2003]00542:Start world 9: Now you've done it. You've gone ahead and looked. Now it's all gonna break. (name sprites done)
[Mon Mar 03 14:44:15 2003]00543:Start world done. (freportw)
[Mon Mar 03 14:44:15 2003]00544:EnterZone. Requesting zhdr.
[Mon Mar 03 14:44:15 2003]00545:EnterZone. Cameras reset.
[Mon Mar 03 14:44:15 2003]00546:EnterZone. Vision reset.
[Mon Mar 03 14:44:15 2003]00547:EnterZone. Overlays reset.
[Mon Mar 03 14:44:15 2003]00548:EnterZone. Overlays drawn.
[Mon Mar 03 14:44:15 2003]00549:EnterZone complete.
[Mon Mar 03 14:44:15 2003]00550:ProcessGame. Beginning main loop.
[Mon Mar 03 14:44:36 2003]00551

oMainLoop: Checking for null LocalPC, then doing vehicle check
[Mon Mar 03 14:44:36 2003]00552

oMainLoop: Entering critical section.
[Mon Mar 03 14:44:36 2003]00553

oMainLoop: call to loadSoundsGame.
[Mon Mar 03 14:44:36 2003]00554

oMainLoop: requesting init info from server.
[Mon Mar 03 14:44:36 2003]00555

oMainLoop: just before first while(!ReadyEnterWorld).
[Mon Mar 03 14:44:36 2003]00556

oMainLoop: complete after first while(!ReadyEnterWorld).
[Mon Mar 03 14:44:36 2003]00557

oMainLoop: just before second while(!ReadyEnterWorld).
[Mon Mar 03 14:44:36 2003]00558

oMainLoop: completed second while(!ReadyEnterWorld).
[Mon Mar 03 14:44:36 2003]00559

oMainLoop: Left Critical Section.
[Mon Mar 03 14:44:38 2003]00009:ERROR: fRadius is zero s3dCollideMovingSphereWithWorld!
[Mon Mar 03 14:44:38 2003]00010:ERROR: fRadius is zero s3dCollideMovingSphereWithWorld!
[Mon Mar 03 14:44:38 2003]00560:Fatal Error Occurred in mainthread Code = c0000005 Addr = 00fa1a57
[Mon Mar 03 14:44:38 2003]00561:Process was trying to READ invalid data.
[Mon Mar 03 14:44:38 2003]00562:Invalid access occurred at virtual address 0x00000007.
[Mon Mar 03 14:44:38 2003]00563:Fatal error occurred in mainthread! (#62
[Mon Mar 03 14:44:38 2003]00564:Graphics DLL Loaded: Version 1.1.41 (DX

Last Build Date: Nov 15 2002 14:22:52
[Mon Mar 03 14:44:38 2003]00565:Crash (char = Babuk, zone = freportw)
[Mon Mar 03 14:44:38 2003]00566:Local Player's World location at time of crash: 33.000000, 28.000000, -23.311497.
[Mon Mar 03 14:44:38 2003]00567:Gamestate at crash = 5
[Mon Mar 03 14:44:38 2003]00568:1 processor(s) of type 586. Physical memory = 512 Megs.
[Mon Mar 03 14:44:38 2003]00569: AMD 912
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It's been happening since yesterday.