norton security crashed explorer.exe

Hello -- I have NS installed on my vista OS --  I got a message to reboot,  from NS --  after the restart, explorer.exe kept  crashing  on start up -- I  this happened about  month ago -- 

Is anyone having this issue? 

Also,  I came across a  *.dmp file in one of the  symantec/norton folders bit don't recall which one -- the name seemed to indicate  indicate that  it was the explorer.exe dump file 

does anyone know were that could be saved? 

lastly, i removed NS and  vista is working OK now 

thanks 

fpe