This site is made with an old Macintosh. (PowerMac 9600/300 with G4/1GHz)
I usually test with Internet Explorer 5.1.7 for Macintosh and Internet Explorer 6.0 for Windows, therefore I recommend you to use the aforementioned browsers.

In Japan many use IE 6.0 with WINDOWS XP.
So I regard IE 6.0 as the standard browser.
Dear IE haters, please excuse me!
As to Operating System my favorite is Windows 2000 & Mac OS 9.1.
Still I'm using Mac OS 9.1, but it won't be developed anymore...
So WINDOWS 2000 became my main operating system.
XP is NOT my like, for me it's a crap.

I know Firefox browser is getting many praises, but I feel no dissatisfaction with IE 6.
Perhaps Firefox will experience no troubles, I hope.