The glorious Opera, Version 10, has just been released. The developers claim it's as standards-compatible as anyone could wish for, but this discussion forum still doesn't work in Opera (as described above). Neither are the CLUBS/BALLS/BRANDS submenu items on the ProShop homepage clickable.
Version 10 is supposed to be even faster than the previous versions, so I'm looking forward to trying to play the golf game itself in Opera. I had to give up playing it in Version 9; Opera is my primary browser and I need to have certain Opera windows open all the time, which led to meter stutter in Opera's gameplay window. I'll give it another try now.
Anyway, I don't mind playing the game in Google Chrome; that browser is good for graphics-related purposes. However, Chrome is unwieldy for browsing/participating in discussion forums, and it's just too bad the lightning-fast Opera can't be used in these forums. (Although the forums worked in Opera up until the last WGT update in mid-August.)