Hi all, I try to start a recently installed Nuxeo instance on a Windows machine and I get the following error…where should I look for to fix it? Many thanks in advance, much appreciated guys

C:\Documents and Settings\All Users\Start Menu\Programs\Nuxeo>"C:\Program Files\
Java\jre7\bin\java.exe"  -Dlauncher.java.opts=" -Xms512m -Xmx1024m -XX:MaxPermSi
ze=512m  -Dfile.encoding=UTF-8 -Dmail.mime.decodeparameters=true  -Djava.util.Ar
rays.useLegacyMergeSort=true  -Xloggc:"${nuxeo.log.dir}/gc.log" -verbose:gc -XX:
+PrintGCDetails -XX:+PrintGCTimeStamps" -Dnuxeo.home="C:\Nuxeo" -Dnuxeo.conf="C:
\Documents and Settings\All Users\Application Data\Nuxeo\conf\nuxeo.conf" -Dnuxe
o.log.dir="C:/Documents and Settings/All Users/Application Data/Nuxeo/logs" -Dlo
g.id="-28012015_18341401" -jar "C:/Documents and Settings/All Users/Application
Data/Nuxeo/tmp\nuxeo-launcher-18021.jar" start
Detected Tomcat server.
Nuxeo home:          C:\Nuxeo
Nuxeo configuration: C:\Documents and Settings\All Users\Application Data\Nuxeo\
conf\nuxeo.conf
Include template: C:\Nuxeo\templates\common-base
Include template: C:\Nuxeo\templates\common
Include template: C:\Nuxeo\templates\default
No current configuration, generating files...
Configuration files generated.
Include template: C:\Nuxeo\templates\common-base
Include template: C:\Nuxeo\templates\common
Include template: C:\Nuxeo\templates\default
Exception in thread "NuxeoLauncherGUITask-7" java.lang.NullPointerException
        at org.nuxeo.launcher.NuxeoLauncher.start(NuxeoLauncher.java:598)
        at org.nuxeo.launcher.NuxeoLauncher.doStart(NuxeoLauncher.java:1324)
        at org.nuxeo.launcher.NuxeoLauncher.doStartAndWait(NuxeoLauncher.java:11
69)
        at org.nuxeo.launcher.NuxeoLauncher.doStartAndWait(NuxeoLauncher.java:11
30)
        at org.nuxeo.launcher.gui.NuxeoLauncherGUI$5.run(NuxeoLauncherGUI.java:2
70)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)