I use mostly of my time Mac OS X (Panther) and Firefox 0.8 (soon 0.9). But also XP and Mandrake Linux PPC.
When i check my designs i always do this in this way.
1. Firefox (my main browser)
2. Safari
3. Opera 7.5 Mac (that i think renders things almost the same way as IE 6 most of the time)
4. IE 5.5 Windows
5. IE 6 Windows
6. Konquerer (now i don’t need Linux for it or Xwin, when KDE Konquerer runs natively without the KDE WM in Mac OS X. There are diffs between Konqurer and Safari, despite both uses KHTML)
I found out that with valid (or somewhat) XHTML/CSS pagedesign are *LOT’S* easier to debug than before.
And oh.. When testing designs, and don’t have access to a PC.
This site is god send: https://www.danvine.com/iecapture/
or for PC users: https://www.danvine.com/icapture/
Be sure to send the author a friendly line, as he keeps it up for free.