switched to NVIDIA, now some font and speed issues

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https://bbs.archlinux.org – I replaced my ATI Radeon card with a NVIDIA GeForce GTX 460, and I've noticed a few issues.  Switching to/from a virtual console and starting X is much slower now; fonts in X are a bit strange (e.g., Tamsyn in urxvt looks shorter); and the virtual terminals don't acknowledge my consolefonts settings in rc.conf at all, so the console font is huge and ugly (less than 20 lines on a 21" widescreen monitor).Do I need to remove the ATI drivers entirely?   Could they be interfering somehow?  Am I supposed to have xf86-video-nouveau installed as well as the nvidia pa (HowTos)