I have accidentally toggled something to show some weird dotted lines
132909
How to hide Relationship Lines in 2.8
58599
Looks to be an obscure page rendering problem
30549
column separation lines now showing up in table
38596
Pressing "W" turned my cursor into a circle
120176
How to show accidentally hidden menu bar?
10162
Unintentional mouse movements, am I paranoid?
10714
Strange artifacts along window borders after waking computer from sleep mode
102506
What are the little coloured bits on my vertical scroll bar in Visual Studio 2010?
37831
Colored borders around windows after update
51316
What the heck have I done to my Excel sheet (and how to undo it)?
21543
Extra blue line appearing in the top bar (Firefox only)
51830
What is this icon on the status bar that looks like a cracked egg? (see screenshot)
39410
Why is the option very low quality sometimes hidden in the flag menu?
129444
Visual Studio 2012: Syntax Highlighting is turning off and on
14127
Is this a new feature of Chrome or what I did to turn this on?
84929
How to close aberrant tooltips in Windows
87061
“Screen overlay detected” dialog? Turned off everything, doesn't work