Windows Powershell has stopped working

Hi,

I am getting an error during Windows logon, which says "Windows Powershell has stopped working". When I looked at the event logs, I found the below event in App logs. Can you pls help what is going wrong here?

Log Name:      Application
Source:        Application Error
Date:          2/18/2014 7:55:16 PM
Event ID:      1000
Task Category: Application Crashing Events
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      MININT-BNG69NS
Description:
Faulting application name: powershell.exe, version: 6.3.9600.16406, time stamp: 0x5244e9dc
Faulting module name: KERNELBASE.dll, version: 6.1.7601.18229, time stamp: 0x51fb1677
Exception code: 0xe0434352
Fault offset: 0x000000000000940d
Faulting process id: 0xb3c
Faulting application start time: 0x01cf2cb52a860b9f
Faulting application path: C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe
Faulting module path: C:\WINDOWS\system32\KERNELBASE.dll
Report Id: 7c4832cf-98a8-11e3-b82f-a088b40d3a94
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Application Error" />
    <EventID Qualifiers="0">1000</EventID>
    <Level>2</Level>
    <Task>100</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2014-02-18T14:25:16.000000000Z" />
    <EventRecordID>2449</EventRecordID>
    <Channel>Application</Channel>
    <Computer>MININT-BNG69NS</Computer>
    <Security />
  </System>
  <EventData>
    <Data>powershell.exe</Data>
    <Data>6.3.9600.16406</Data>
    <Data>5244e9dc</Data>
    <Data>KERNELBASE.dll</Data>
    <Data>6.1.7601.18229</Data>
    <Data>51fb1677</Data>
    <Data>e0434352</Data>
    <Data>000000000000940d</Data>
    <Data>b3c</Data>
    <Data>01cf2cb52a860b9f</Data>
    <Data>C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe</Data>
    <Data>C:\WINDOWS\system32\KERNELBASE.dll</Data>
    <Data>7c4832cf-98a8-11e3-b82f-a088b40d3a94</Data>
  </EventData>
</Event>

Arun