Note that you may also be able to add a CSS rule just like the IE8 one you mentioned using "img.size-large" to work around this issue.

If you need further help, please reply back here to let us know what you've tried already.

img.size-full {
max-width: 100%;
width: auto; /* Prevent stretching of full-size images with height and width attributes in IE8 */
}

And the images in the http://getvelvet.org/2012/10/11/grand-designs-live-part-3/ post are using a class of "size-large". Can you try inserting some of the images as full width instead of large to see if that fixes the problem for you in IE8?

Safari - image 1: http://getvelvet.org/?attachment_id=287
Safari - image 2: http://getvelvet.org/?attachment_id=288

The post I am talking about is:
http://getvelvet.org/2012/10/11/grand-designs-live-part-3/

I ended up fixing it by creating a new photo at the exact dimensions the featured photo is. So I'll just have to have 2 of each photo in my media library.

Since the bug was fixed, you shouldn't need to upload featured images that are the exact dimensions of your theme. The Columnist should be able to create the correctly sized thumbnails.

For the next featured image you set, could you try with a regularly-sized image to see if the issue is fixed for you? I only ask because if you were to continue uploading thumbnails sized exactly for The Columnist theme, and wanted to one day switch themes to a theme with larger thumbnails, you would need to reset all of your old featured images.

Thank you for your patience in helping us troubleshoot this.

/* Images */
.post-entry img {
border: 1px solid;
border-color: #ddd #ccc #ccc #ddd;
height: auto;
left: -4px;
max-width: 100%;
padding: 3px;
position: relative;
-moz-box-shadow: 4px 4px 12px #ccc;
-webkit-box-shadow: 4px 4px 12px #ccc;
box-shadow: 4px 4px 12px #ccc;
}
img[class*="align"],
img[class*="wp-image-"] {
height: auto; /* Make sure images with WordPress-added height and width attributes are scaled correctly */
}
img.size-full {
max-width: 100%;
width: auto; /* Prevent stretching of full-size images with height and width attributes in IE8 */
}

As you may guess, it doesn't work properly for some reasons.
Can anyone please advice me how to fix it?

I ended up fixing it by creating a new photo at the exact dimensions the featured photo is. So I'll just have to have 2 of each photo in my media library.

Seems like a redundant work around for a CMS that's supposed to be able to take care of that for you.

An update to WordPress.com caused some issues with images in different themes to be stretched, but has since been fixed.

It's likely that you're seeing a cached version of your site, having visited the site while the bug was present.

I would recommend clearing your browser cache to make sure that you hare viewing the most up-to-date version of your site.

For more information on Clearing Your Cache and Cookies:
http://en.support.wordpress.com/browser-issues/#clear-your-cache-and-cookies

Thanks.

In Safari they are compressed/stretched, while in other browsers they display fine.

Screenshot

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An example of what I'm having a hard time fixing can be seen here:

http://midlifefitnessandbeyond.com/?page_id=239&paged=2

I'm using the D'vonia Lite theme, any help would be appreciated as the stretched images are quite annoying.

You'll want to go to Dashboard->Settings->Writing and select "Wordpress should correct invalidly nested XHTML" and save. Then go to Dashboard->Posts and select all posts down to and inclluding the one messing up, and change them to Drafts. Then change them back. That forces the XHTML setting to work on those already-done post, and what that does is it fixes any HTML errors in your blog.

Any ideas what on earth is going on by any chance?

It happened after I removed the featured image from a couple of my posts.

Can anyone plleasssee help me with this asap???

http://www.randomwire.com/how-to-bypass-the-great-firewall-of-china

I really hope this helps and you'll find a way to access/update your blog!

The photos will automatically be shrunk to the widest width that can be displayed. I don't think that's 1000px wide.

http://azislamicschool.com/2011/04/30/aca-career-day/ for this post especially.

I really like big pictures. How is it that the photos are still appearing if the width is only 600 pixels?

Thank you for the quick response!

Also, there's no need to upload them full size like that. You've only got about 600 pixels width in that theme.