update parked/subdomains

Since moving a lot of accounts onto a new server, WHM on that server does not list all the subdomains/parked domains for all the accounts.

Is there any way to force this to update? (both parked and subdomains and those parked on subdomains). I've had a look through /scripts/ but cant see anything other than updateuserdomains which has no effect.

Thanks in advance,
Andy.