Since starting programming I have used a lot of text editors, some have been good, and some have been very, very bad.
One text editor that stands out is PSPad. It is a free text editor for Windows that has lots of features and is very stable. I have been using this for a while now and have seen very little problems. I say "very little" as I once tried to open a 800 megabyte log file and it fell over, which is understandable.