I've just started thinking about tuning my app to work better in SLI configurations so enabled the Show SLI Visual Indicators in the nVidia control panel and...... nothing. My app is fullscreen OpenGL and I assumed once enabled the visual indicators would just show up. Do the visual indicators show for OpenGL apps or just for DirectX apps? Are there things I may be doing in my app that stops the indicators showing? Is my app so SLI unfriendly that it can't currently make use of SLI? (!!!) The setup is 2x 8800GTXs correctly configured for SLI (i.e. works fine for other apps). TIA

You didn't say what OS you're using, Vista or XP?

Sorry. I'm using XP with nVidia driver version 97.73 for CUDA Toolkit version 0.8.