Forum Moderators: open
You are not installing linux on your pc when you run this, it runs in your ram, it's risk free.
The dan devine site goes down sometimes because I think he's running it at home off a Mac OS X server, and it's very popular, and graphic intensive, he's having bandwidth issues, give him a break until he can get some cash flow from his site going and try the knoppix for testing your stuff, it's easy and will give fairly comprable CSS rendering with some exceptions.
<plug>the icapture site is the best site I've seen this year for helping web developers, saves huge debugging time, if you are doing a for pay job and use his service, think about how much time it's saving you and give him some money</plug>