I can get it to work using my Planar PV174 as primary monitor and Viewsonic PF790 as extended. I also set up schemes to switch between either. However, am I only limited to the LCD's refresh rate even on the CRT? Seems I can only get a 60hz display on the CRT, which blows. I thought a dual head video card would be able to send different refresh rates to the 2 ports if needed. Otherwise, pairing a CRT and an LCD seems useless to me. Anybody know how this can be done?