VS2005, C#
When using the C# keywords as or is, the variable preceeding the keyword is colored wrong.
example:
void buttonX_Click(object sender, EventArg e)
{
Button X = sender as Button;
if(sender is Button)
whatever();
}
Obs: basically whenever you start typing after a variable with a space, the variable will be colored wrong, like in nVarX = nVarY typesomethinghere;