If I do it that way on my PC, I find that I need to click twice (not the same as a double-click), once to create the opening tag and again to create the closing tag. A single, unpaired tag will cause subsequent tags to be applied incorrectly.
While in the compose/edit mode, one can quote by clicking the [attachment=1780:attachment] icon at the top and pasting any text between the tags:...
But an alternative -- at least on my PC -- is to type the text first, then select/highlight it (using click-drag or click followed by shift-click) and click on the "quote" icon. That inserts an opening tag just before the highlighted section and a closing tag immediately after, i.e., encloses the highlighted text within appropriate quote tags.
And just in case anyone doesn't know what we mean by "tags", they are special instructions to the software that formats the posts for C.net, telling it how to "highlight" a segment of text. Each "opening" tag -- a word enclosed in square brackets -- says to start highlighting the text in a particular way, e.g., in italics, larger size, or particular color, by enclosing it in a quote box, or whatever. (Some opening tags can also contain additional information, such as the poster's name and time when a quoted post was posted.) A closing tag to match an opening tag musts contain the same key word, but preceded by a slash.
Here are a few examples of opening and closing tag pairs. This list has been created by using the "code" tags, which causes the enclosed text to be displayed precisely as entered, including extra spaces and tags, displaying the tags rather than interpreting them. (I have not included a pair of "code" tags. Can you guess why? )
italic: [i]text[/i] underline: [u]text[/u] color (dark red): [color=#CC0000]text[/color] quote: [quote]text[/quote] quote w/ info: [quote name='David Barnert' date='May 6 2006, 02:01 PM' post='38894']quoted post[/quote] URL: [url=http://www.concertina.net/forums]Concertina.net[/url]