Help Apps moved to SD card not updating

[Android Question]

I have moved as many apps as I can to SD card and they work fine from there, however, when updates are trying to install they can't update them. They try a few times then I get a message saying that the app cannot be updated. If I move them back onto the device they can be updated and moved back. Is there some way of letting the update find apps on the SD card?

Wyn