Ok this iis what I do: Flash my Rom, cyanogen, then use titanium backup to restore my apps. Then if I come across a new Rom I wanna try out I back up my current Rom by going into clockwork recovery and backing it up. During the back up process, it says sd-ext not found, skipping step, so it finishes the back up and say I didn't like the new Rom, I go back into recovery and restore my Rom. During the restoring it says sd-ext not found, skipping step and everything else finishes. So I reboot and download my apps through titanium and Google play is there, updated, and when I try to download a new app, it says error processing purchase, regardless if its free or not. Oh and downloading apps works perfectly when I flash the Rom from new, but it doesn't work when I restore a Rom.