Help! I have a problem with LW uninstalling itself, this is the message I get.

LimeWire version 4.12.6
Java version 1.5.0_07 from Sun Microsystems Inc.
Windows XP v. 5.1 on x86
Free/total memory: 2795048/4128768

com.limegroup.gnutella.gui.GUILoader$StartupFailed Exception: invalid themes.jar
at com.limegroup.gnutella.gui.GUILoader.sanityCheck(G UILoader.java:275)
at com.limegroup.gnutella.gui.GUILoader.load(GUILoade r.java:48)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknow n Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Un known Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.limegroup.gnutella.gui.Main.main(Main.java:44)

STARTUP ERROR!

-- listing properties --
WINDOW_Y=112
WINDOW_X=220
PORT=27458
TOTAL_CONNECTION_TIME=16270890
RUN_ON_STARTUP=false
UPDATE_DELAY=252000020
UPDATE_GIVEUP_FACTOR=49
FILTER_HASH_QUERIES=true
INSTALLED=true
AVERAGE_UPTIME=5394
TOTAL_UPTIME=16182
MAX_UPLOAD_BYTES_PER_SEC=9
MIN_CONNECT_TIME=7
CONTENT_AUTHORITIES=fserv1.limewire.com:10000
COUNTRY=US
LAST_SHUTDOWN_TIME=1162273006906
SESSIONS=4
SHOW_TOTD=false
MINIMIZE_TO_TRAY=false
LAST_ACCEPTABLE_BUG_VERSION=4.12.5
FRACTIONAL_UPTIME=0.026992822
UPDATE_RETRY_DELAY=1800001
CONNECTION_SPEED=350
LAST_EXPIRE_TIME=1162256194609
TOTAL_CONNECTIONS=3
DIRECTORY_FOR_SAVING_FILES=G:\Limewire
MAX_DOWNLOAD_BYTES_PER_SEC=31
UPDATE_DOWNLOAD_DELAY=14400001
DISPLAY_TRAY_ICON=false
RUN_ONCE=true
AVERAGE_CONNECTION_TIME=5423630
EVIL_HOSTS=Bear
MAX_SIM_DOWNLOAD=8
DIRECTORIES_TO_SEARCH_FOR_FILES=G:\Maeve's folder\audio;G:\Limewire
UNSET_FIREWALLED_FROM_CONNECTBACK=true
CLIENT_ID=23096F445F8F3CA5C9CDEC6F3A678B00
CONTENT_MANAGEMENT_ACTIVE=true
FLUSH_DELAY_TIME=25
IDLE_CONNECTIONS=2



FILES IN CURRENT DIRECTORY:
C:\Program Files\LimeWire\clink.jar
LAST MODIFIED: 1162256095468
SIZE: 307949

C:\Program Files\LimeWire\commons-httpclient.jar
LAST MODIFIED: 1162256095906
SIZE: 459988

C:\Program Files\LimeWire\commons-logging.jar
LAST MODIFIED: 1162256096203
SIZE: 59154

C:\Program Files\LimeWire\commons-net.jar
LAST MODIFIED: 1162256096406
SIZE: 355370

C:\Program Files\LimeWire\daap.jar
LAST MODIFIED: 1162256096718
SIZE: 388504

C:\Program Files\LimeWire\GenericWindowsUtils.dll
LAST MODIFIED: 1156261551091
SIZE: 12279

C:\Program Files\LimeWire\i18n.jar
LAST MODIFIED: 1162256097187
SIZE: 25678

C:\Program Files\LimeWire\icu4j.jar
LAST MODIFIED: 1162256097578
SIZE: 741440

C:\Program Files\LimeWire\id3v2.jar
LAST MODIFIED: 1162256097781
SIZE: 94430

C:\Program Files\LimeWire\jcraft.jar
LAST MODIFIED: 1162256097937
SIZE: 136693

C:\Program Files\LimeWire\jl011.jar
LAST MODIFIED: 1162256098296
SIZE: 255016

C:\Program Files\LimeWire\jmdns.jar
LAST MODIFIED: 1162256098484
SIZE: 69306

C:\Program Files\LimeWire\LimeWire.exe
LAST MODIFIED: 1156261555747
SIZE: 159744

C:\Program Files\LimeWire\LimeWire.jar
LAST MODIFIED: 1162256092046
SIZE: 7117582

C:\Program Files\LimeWire\LimeWire20.dll
LAST MODIFIED: 1156261553326
SIZE: 40960

C:\Program Files\LimeWire\log4j.jar
LAST MODIFIED: 1162256098765
SIZE: 677952

C:\Program Files\LimeWire\looks.jar
LAST MODIFIED: 1162256099046
SIZE: 630634

C:\Program Files\LimeWire\MessagesBundles.jar
LAST MODIFIED: 1162256094531
SIZE: 2951044

C:\Program Files\LimeWire\mp3sp14.jar

This has happened about four times in the last week. It doesn't appear on my add/remove list in control panel so I reinstall. Would this be a problem with my antivirus (Etrust) or windows updates? Thanks in advance.