Well, finally got the download working, and here's your backtrace, copied from the command window(don't know if it creates a log...)
Program received signal SIGSEGV, Segmentation fault.
0x0047831c in S_StartSound (origin=0x22fcc0, sfx=0x0, relVolume=0.800000012,
attenuation=0.0199999996)
at C:/Dokumente und Einstellungen/mattn/Desktop/dev/trunk/src/client/cl_soun
d.c:323
323 C:/Dokumente und Einstellungen/mattn/Desktop/dev/trunk/src/client/cl_sou
nd.c: No such file or directory.
in C:/Dokumente und Einstellungen/mattn/Desktop/dev/trunk/src/client/cl_
sound.c
(gdb) bt full
#0 0x0047831c in S_StartSound (origin=0x22fcc0, sfx=0x0,
relVolume=0.800000012, attenuation=0.0199999996)
at C:/Dokumente und Einstellungen/mattn/Desktop/dev/trunk/src/client/cl_soun
d.c:323
volume = 102
#1 0x00442c6b in LE_PlaySoundFileAndParticleForSurface (le=0xa8b7374,
textureName=0xe7e4bfc "tex_buildings/floor_se01")
at C:/Dokumente und Einstellungen/mattn/Desktop/dev/trunk/src/client/cl_le.c
:470
sfx = (sfx_t *) 0x0
t = (const terrainType_t *) 0xe0b7c74
origin = {16, -16, 32}
#2 0x0044300c in LET_PathMove (le=0xa8b7374)
at C:/Dokumente und Einstellungen/mattn/Desktop/dev/trunk/src/client/cl_le.c
:550
dv = 2 '\002'
frac = 2.29270358e-035
tuCost = 2
start = {2.61108563e-032, 8.22039794e-039, 8.40779079e-044}
dest = {1.54142831e-044, 1.93953784e-030, 3.21349127e-039}
delta = {8.22039794e-039, 1.93953784e-030, 2.24207754e-044}
trace = {allsolid = qfalse, startsolid = qfalse,
fraction = 0.609130859, endpos = {16, -16, 18.03125}, plane = {normal = {0,
---Type <return> to continue, or q <return> to quit---
0, 1}, dist = 18, type = 2 '\002', signbits = 0 '\0', pad = "\0"},
surface = 0xe7e4bfc, contentFlags = 65281, le = 0x0, ent = 0x0}
from = {16, -16, 96}
to = {16, -16, -32}
#3 0x00443306 in LET_StartPathMove (le=0xa8b7374)
at C:/Dokumente und Einstellungen/mattn/Desktop/dev/trunk/src/client/cl_le.c
:602
No locals.
#4 0x004426c1 in LE_Think ()
at C:/Dokumente und Einstellungen/mattn/Desktop/dev/trunk/src/client/cl_le.c
:309
le = (le_t *) 0xa8b7374
i = 17
#5 0x0044a086 in CL_Frame (now=106430, data=0x0)
at C:/Dokumente und Einstellungen/mattn/Desktop/dev/trunk/src/client/cl_main
.c:2376
last_frame = 106430
delta = 21
#6 0x00495957 in tick_timer (now=106430, data=0xe100578)
at C:/Dokumente und Einstellungen/mattn/Desktop/dev/trunk/src/common/common.
c:827
timer = (struct timer *) 0xe100578
old_interval = 11
---Type <return> to continue, or q <return> to quit---
lateness = 2
#7 0x00495bd2 in Qcommon_Frame ()
at C:/Dokumente und Einstellungen/mattn/Desktop/dev/trunk/src/common/common.
c:908
event = (struct event *) 0xe643e00
time_to_next = 0
#8 0x004b2ff8 in WinMain (hInstance=0x400000, hPrevInstance=0x0,
lpCmdLine=0x241f01 "+set", nCmdShow=10)
at C:/Dokumente und Einstellungen/mattn/Desktop/dev/trunk/src/ports/windows/
win_main.c:413
No locals.
#9 0x004dcd9a in main ()
No symbol table info available.
(gdb)