There is something seriously wrong with that driver and it's from 2007. They really should update it and make it work in common games like UT3.
I really think the problem is on UT3's side, i have the XFi-Elite Pro, and i use EAX in all games that have it (no point letting a card like that go to waste), and thease days, that means allmost all of them are running OpenAL, this even includes other UE3 engine games, and they are all running just fine, UT3 is the only game where i must disable OpenAL or it will crash, hell OpenAL even works in Unreal and UT thanks to the OldUnreal patches.
Now i'm no expert on the matter, but when everything else works just fine except this one game, im inclined to make the logical conclution that the problem is with that one game, and not the drivers that works for everyone else, it seems to make alot more sense.
But perhabs there really is some problem with the drivers, drivers never are perfect afterall, but still, that just tells me that everyone else has found a workaround for it except the team behind UT3.
Regardless, whoever is at fault, the issue should have been resoled ASAP, but here we are 9 (or is it 10..) months later and it doesen't look like it ever will be.