The part here I am describing is not a problem really but it is merely an observation. Following are the details of the office PC:
1. OS: Windows XP (Not sure @ Service Pack)
2. Excel 2003

Whenever I do some coding related work or even activity such as viewing code then close it and later when the windows is locked (mostly due to inaction) and when I Log In using CTRL+ALT+DELETE, the VBE Window for Excel gets opened automatically.

My question is what triggers this event (of opening VBE window on its own)?