The Convert Task for a long time in the "Starting up" state, unable to enter the "In process" state,why?


SolidWorks Enterprise PDM 2010 SP4.0
Server OS :Windows server 2003
Client OS: Windows XP SP3
SQL Server 2008 sp1
The Convert Task for a long time in the "Starting up" state, unable to enter the "In process" state.From 9:00 this morning until 11:30, all tasks initiated still "Starting up" state.
  Trying to replace the task  host is the same after the new convert task.
SolidWorks software  can be run independently on a host of tasks.

The automatic login is disabled on the task host system.

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