[SOLVED] Random Error

[Techwiz]

My firefox window just went transparent. By this I mean that it is the active window and the entire thing went transparent. All I did was press Alt+F2 a couple of times. This does not seem to be affecting other windows. Any Ideas on what happened? I just want to know.

[original_jamingrit]

alt f2 shouldn't do that in gnome. Maybe you used the desktop effects tranparency by mistake? hold the ALT key and scroll up and down on your mouse to change the transparency.

[Techwiz]

Thank you! I must have touched the scroll wheel by mistake!