Magic Lantern on T1i taking forever! What's usual?

I'm updating the firmware (I think) on my T1i and it seems to be taking quite a long time. How long is usual? The red light on the lower right has been steadily blinking (slowly) for over an hour and a half now. If I switch the camera off or hit menu or anything, nothing happens. Thoughts?

Downloaded 11.12.22 from http://magiclantern.wikia.com/wiki/Unified -> formatted card -> pasted zipped files onto clean card -> Manual Mode -> Menu -> 3rd wrench -> firmware update -> black screen and blinking light.