soapUI stops with nullpointer exception and can not be restarted

Hi,

Version: 1.7.1 (on Windows, not PRO version)
RAM: 512 Mb

The soapUI crashed during import of project. Other projects have already been imported and the programs have been working for several days.

After exception, it's not possible to start again. The computer has been  restarted and soapUI has also been reinstalled. A printout is available in the command window. For some reason soapUI tries to read all the projects that were loaded then it crashed. Is it possible to avoid this and only start soapUI without loading the project?

The project have been imported on another computer with PRO version and more RAM memory without any problems.

Regards,
Kåre

PRINTOUT
------------
Configuring log4j from [jar:file:/C:/Program%20Files/eviware/soapUI-1.7.1/bin/so

apui-1.7.1.jar!/soapui-log4j.xml]

14:29:06,147 WARN  [SoapUI] Failed to load settings [soapui-settings.xml (The sy

stem cannot find the file specified)], creating new

14:29:06,422 INFO  [SoapUI] Missing folder [C:\Program Files\eviware\soapUI-1.7.

1\bin\ext] for external libraries

14:29:06,444 INFO  [WorkspaceImpl] Loading workspace from [C:\Documents and Sett

ings\linhof1\default-soapui-workspace.xml]

14:29:07,212 INFO  [WsdlProject] Loaded project from [G:\au_mobile\Solution Pack

age Development\Cingular - TODD\High Level Test\3 Feature Test\10 RetrieveOTATra

nsactionHistory\OTATransactionHistory-soapui-project.xml]

14:29:07,574 INFO  [WsdlProject] Loaded project from [G:\au_mobile\Solution Pack

age Development\Cingular - TODD\High Level Test\3 Feature Test\7 VoiceMailFeatur

eChange\OTATransactionHistory-soapui-project.xml]

14:29:07,980 INFO  [WsdlProject] Loaded project from [G:\au_mobile\Solution Pack

age Development\Cingular - TODD\High Level Test\3 Feature Test\7 VoiceMailFeatur

eChange\VoiceMailChange-soapui-project.xml]

14:29:08,100 INFO  [WsdlProject] Loaded project from [G:\au_mobile\Solution Pack

age Development\Cingular - TODD\High Level Test\3 Feature Test\9 UpdatePPI\updat

ePPI-soapui-project.xml]

14:29:08,177 INFO  [WsdlProject] Loaded project from [G:\au_mobile\Solution Pack

age Development\Cingular - TODD\High Level Test\3 Feature Test\6 PAS Feature Add

Remove\PASAddRemove-soapui-project.xml]

Exception in thread "main" java.lang.NullPointerException

        at java.lang.String.compareTo(Unknown Source)

        at com.eviware.soapui.model.tree.AbstractModelItemTreeNode$1.compare(Abs

tractModelItemTreeNode.java:223)

        at com.eviware.soapui.model.tree.AbstractModelItemTreeNode$1.compare(Abs

tractModelItemTreeNode.java:215)

        at java.util.Arrays.mergeSort(Unknown Source)

        at java.util.Arrays.sort(Unknown Source)

        at java.util.Collections.sort(Unknown Source)

        at com.eviware.soapui.model.tree.AbstractModelItemTreeNode.sortModelItem

s(AbstractModelItemTreeNode.java:213)

        at com.eviware.soapui.model.tree.AbstractModelItemTreeNode.initOrdering(

AbstractModelItemTreeNode.java:166)

        at com.eviware.soapui.model.tree.nodes.WorkspaceTreeNode.(Workspac

eTreeNode.java:53)

        at com.eviware.soapui.model.tree.SoapUITreeModel.(SoapUITreeModel.

java:49)

        at com.eviware.soapui.ui.Navigator.buildUI(Navigator.java:66)

        at com.eviware.soapui.ui.Navigator.(Navigator.java:61)

        at com.eviware.soapui.SoapUI.buildUI(SoapUI.java:319)

        at com.eviware.soapui.SoapUI.show(SoapUI.java:780)

        at com.eviware.soapui.SoapUI.startSoapUI(SoapUI.java:660)

        at com.eviware.soapui.SoapUI.main(SoapUI.java:601)