I keep expressing myself as a monkey. Sorry :P
The parenthesis appears when I explicitly type '('. Hence, the <enter> key is not the problem!
"buf" is in Clipboard
_cou<enter> --> _countof
( --> _countof(|)
<ctrl+v> --> _countof(buf)
) --> _countof(buf))
NOTE: This seems to only happen when inside another function:
sprintf(buf, | "%d", myInt); // Do the above at the cursor!