Boot won't complete - no error msg

How to Perform a Clean Boot in Windows XP
Note You must be logged on as an administrator or a member of the Administrators group in to complete this procedure. If your computer is connected to a network, network policy settings may also prevent you from completing this procedure.
Click Start, click Run, type msconfig in the Open box, and then click OK.
On the General tab, click Selective Startup, and then click to clear the Process System.ini File, Process WIn.ini File, and Load Startup Items check boxes. You cannot clear the Use Original Boot.ini check box.
On the Services tab, click to select the Hide All Microsoft Services check box, and then click Disable All.
Click OK, and then click Restart to restart your computer.
After Windows starts, determine whether the symptoms are still present.

Note Look closely at the General tab to make sure that the check boxes that you cleared are still cleared. If additional check boxes are disabled and the problem is not resolved, you may require assistance from the manufacturer of the program that places a check mark back in Msconfig.

If none of the check boxes are selected and the problem is not resolved, you may have to repeat steps 1 through 5, but you may also have to clear the Load System Services check box on the General tab.
Click Start, click Run, type msconfig in the Open box, and then click OK.
On the General tab, click to select the Process System.ini File check box, click OK, and then click Restart to restart the computer. If the problem continues to occur, the issue is with an entry in your System.ini file. If the problem does not continue to occur, repeat this step for the Process Win.ini File, Load Startup Items, and Load System Services (if appropriate) check boxes until the problem occurs. After the problem occurs, the last item that you selected is the item in which the problem is occurring.