VBa Code Did't Open Workbook

Hello,

I'm having a major headache in figuring out why the VBA code which I'm applying at my office computer seems to work perfectly but fail to work at my home computer.

The code is simple,

Sub OpenT1()
Workbooks.Open ("C:\Users\azmi\Documents\n.xls")
End Sub

n.xls is my file name
I keep getting error 1004 message , file could not be found.
I'd checked,double checked and triple checked the file locations,spelling and so on but could not find any error.

Can somebody help me out

Thanks