Client Crash-EQ-after patchFollow

I find that char's will radomly crash to desktop(screen goes black, and get client crash message) for no apparent reason. Once this has happened I can not relog that char without first deleting thier ui_*charname file. I can log other chars in just not that one. It has happened 3 times now with two different chars...it is frustrating. I can not see a pattern as to what makes them crash (expect it has only happened in POK...one I was working on skill ups, one I hit backspace to pullup the map...

Here is my system info, if you need more let me know...I did all the appropriate updates.
Windows XP
Intel Pentium 4 CPU 2.4 Ghz
Dimension 2400
Hard drive-37.2GB free 25GB
768mb RAM
Direct X9.0b
Nvidia GeForce 4MS 440 with AGP8x with most updated drivers installed (twice:))

I would greatly appreciate anyhelp as this is irritating and I would hate for it to happen in a fight of something.

Edited, Wed Mar 24 14:41:50 2004 by Brahmah

defragged, no help there...guess its the card. pfft..that sucks:). Oh well I am rapidly figuring out the little things that make it crash, i.e. opening map in pok library. very odd but primarily aviodable till I can get a better card. anyways thanks for the help.