Sorry if you feel shortchanged but file associations and launching is pretty well covered on many web pages. However for this one I don't know of an instant cure but have to dive into the file association and examine the launch information. Here's a primer on that.
There are more about opening up the details of which app to run with the command line and so on but why not try changing the association of the file.txt first to avoid what to some may be computer science?
Whenever I try to open a file with notepad by double clicking on it ' I I get a Windows cannot find error with the correct pathname to the file yet the file does actually open anyway. I ussuaally just close the error message and can do everything to the open file I want to ussually. So this isn't too big a deal but... It has gotten pretty annoying!!! Can anyone offer any assistance that might help me to eliminate this annoying glich? Thanks Matt