I am using Windows 7 and a VM, I am not able to open my URL on Safari 3.2.3, 5.1, IE6,7,8 FF3.2.3 or 5.
I am getting the message that the browser/OS failed to load, the screen shot failed, because the URL is invalid.
Please fix it and try again.
The URL I am using opens in every browser I have on my machie: Chrome 13, FF7, IE8 and safari 5.1.
I will try your service from my local machine and see if that makes a difference.
Can you please post the URL you're having problems with so we can give it a try as well? I have a Windows XP VM and run BrowserLab on it with no issues.