Question : Cannot Start Services Errror 1503

Hello Experts,
I have a machine that is running Vista Ultimate. Last night it was running very slow out of the blue and I was too tired to mess with it so I shut down and rested. Today I have it up, but the the network icon has a red x in it and I can't run diagnose and repair because it times out with an error number 1503. I ran services and noticed a few other services set to Automatic were also not running. Just out of curiosity, I tried to start a few of them. Each one gave me the Error 1503 "the service did not respond to the start request in a timely manner" after timing out. Any help available?

Answer : Cannot Start Services Errror 1503

Little correction PL/SQL can have multiple DECLARE statments but it should be grouped logically.

Here is example

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---------MAIN BLOCK STARTS--------------------------------------
DECLARE
   v_num   NUMBER := 1;
BEGIN
   DBMS_OUTPUT.PUT_LINE (V_NUM);

   -- SUB BLOCK STARTS------------------------------
   DECLARE
      v_num2   NUMBER := 2;
   BEGIN
      DBMS_OUTPUT.PUT_LINE (V_NUM2);
   END;      
   -- SUB BLOCK ENDS-----------------------------------
END;                                                     
-----MAIN BLOCK ENDS-------------------------------