I decided to uninstall and reinstall the game to see if it would run faster, but now I can't get it to run at all. The updater worked fine, and I can load pssetup, but when I open the client it causes my computer to reboot. I get a black screen, sometimes an hourglass appears, and then bam! Computer reboots. I've toggled various settings in pssetup and nothing has fixed it. I think I remember having this problem before but I can't remember what the fix was.
The machine in question:
Windows XP, SP3
Intel Pentium 4 2.40Ghz
2.41 GHz, 512 MB of Ram
NVIDIA GeForce4 MX 440SE with AGP8X
The thankiest of thanks to anyone who can help!