From my browsing and reading the forums and IE7 website, it appears that IE6 and IE7 cannot run concurrently. If this is the case, is there any feature in IE7 that allow you to preview what a webpage would look like in IE6. It really would be a pain to have to view every web page in development on a different PC just to see how IE6 and IE7 would render it.

IE6 & IE7 Concurrently
Rian Edwards
Hope this helps, my brothers..
http://tredosoft.com/Multiple_IE
Works like a dream for me.
wuytens
NeoBugs
Jacobeo
Here, here! Excellent point.
Is it not lame that Microsoft does this to us developers Please Bill (whomever, someone!), can you try to feel our pain and do something about this
pojee386