Lost my icons on the left side of my screen vertically.
 

I'm new to the game and don't know what to call that "window" but it showed the buffs I had, and also the duration left on my spells. Like when I cast Arcane bindings it would be counting down X.X seconds letting me know how much time it had left.

My client crashed and I lost it, if you could tell me how to get that useful window back I would really appreciate it.

Again, it was on the far left of my screen and vertical.

TIA

that is you maintained spells window. I am not positive but try ALT M to get it back. If that doesn't work, check under your options, user interface and like hot keys or something, it will show what all key combos your windows are bound to.

Yes, that's the maintained spells window.

First press F10 once to double check if the window is there or not. It's possible you scrolled all the icons out of the window with your mouse scroll wheel. Then press F10 twice to go back to normal.

Normally the keyboard shortcut to hide that window is Alt M. You can change it in the Options window (something like Options - Controls - Window keys - Maintained Spells). Also, you can disable hiding any of the normal windows so it won't be possible to lose those windows by accident (something like User Interface - Game Windows - Keep Main HUD windows visible.)

Thanks gang, that cleared me right up. I love the ui mod by the way.