[kubuntu] I get black screen when trying to boot into KDE

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http://ubuntuforums.org – I had a GeForce 7200 PCIe car using the nouveau drivers without issue. The card all of a sudden started making a bad noise from the fan. I had a GeForce FX 5200 PCI laying around so I swapped the cards out. I can boot into Gnome no effect but when I try KDE I get a black screen. Through grub2 I can boot into recovery mode and the failsafe mode to get back to kde. This isn't ideal since I have to rearrange my panels every boot and I can't reboot without doing this all over again. Can someone point me in the right direction? (Hardware)