[Wine] Rubbish performance in Oblivion

[spoons]

Hi there,

I've been trying to play The Elder Scrolls: Oblivion under Linux. But under WINE performance is horrible. 640 x 480 minimum settings, and I'm getting about 4 FPS. The game runes maxed out at 1680 x 1050 with 4xAA all settings to maximum smooth on Windows.

Wine 1.1.6
Ubuntu 8.10 Intrepid Ibex
fglrx 8.10
ATi Radeon 3870.

I appreciate any responses. Btw Direct Rendering is working, and I'm not running compiz.