Twitter widget works, then fails to load

Question

Trying to use twitter's widget here with limited success. First attempts work fine but eventually js fails to load. If I then reload widget it resumes following for awhile before again failing. (Same results in Firefox, Safari, Opera.)
Only tweaking is to set widget display width to div width (180 px); heigth.  Any ideas? Any way to trace page behavior to see what's happening?
  <script src="http://widgets.twimg.com/j/2/widget.js"></script>
  <script>
new TWTR.Widget({
  version: 2,
  type: ’profile’,
  rpp: 4,
  interval: 6000,
  width: 180,
  height: 200,
  theme: {
    shell: {
      background: ’#333333’,
      color: ’#ffffff’
    tweets: {
      background: ’#000000’,
      color: ’#ffffff’,
      links: ’#4aed05’
  features: {
    scrollbar: true,
    loop: true,
    live: true,
    hashtags: true,
    timestamp: true,
    avatars: false,
    behavior: ’default’
}).render().setUser(’cafe_racer’).start();
</script>
Message was edited by: caferacer - added widget code

Answer 1

Don't know if I'm looking in the right place but firebug picks up an "illegal character type: 'profile',/n in line 290"
DW also alerts to the same source code line, "syntax error"
I don't see the <,/n> in the actual code, so don't know if this is the problem or not. This is usually the place where I recopy the code from twitter and repaste it into the page, which then works fine for awhile before failing to display.
Can't see any widget size reference beyond w, h which I replaced as 180, 200.