Sometimes it's transparent, sometimes it's white

I'm currently working on a website about my favourite group ever, The Roots.

I wanted to put an image in the top right corner of the page, but didn't want it to just be a straight cut image that comes out of nowhere. So I used the smudge tool to make it a little nicer. You can see what I mean here:

http://www.theroots.info

Depending on what computer you're using, it may look good, or it may look white a bit on the left where it should be semi transparent. I thought it was fine last night but I just logged onto an older computer and realized that it looks like crap.

What do I do?

i dont have a crappy computer, so i dont really know what it looks like.

are you sure its not because of the browser?

Hmm it just happened on this computer and it's got windows xp and is fast...

It'll be your browser. What you using? Computer specs dont make any difference mate.

You're probably using a PNG image. PNG image contain transparancy with anti-aliasing, but is not supported by all browser. IE6 will not render the transparancy for example.

why not just use this image?

I'm using internet explorer right now but on my computer at home it looks fine in both ie and firefox.

Is there another image format that would be very compatible but still allow transparancy?

You can try using .gif, but why not just use the image I posted, it looks identicle to if it was transparent

i dont see an image

Theres no reason why it has to be transparent, use the image posted above