Ok, so I reformatted my SD card with a ext4 partition so I can store more apps. I noticed the apps hadn't moved so I went to reflash the dalvik2sd zip and for some reason when I recovery I cannot see zip files when I choose "install zip from sd"
I can see the zips via es or astro and USB.
Tried deleting are reloading them. Also tried downloading direct on the phone. No joy.
I'm now stumped!