Can I get away with testing sites using IE8 with IE7 compatibility on?

Question

As a developer, can I safely upgrade to IE8 and use its IE7 compatibility mode to test how sites look in IE7? For IE6, I have a virtual machine and it is quite inconvenient. I d

Answer 1

I know for a fact that IE7 and IE8 (compatibility mode) are not the same. In my case it was CSS problem that showed up in IE7 and not in IE8