I've just had a VM engineer round who tested the signal strength - said it was a bit high so added an attenuator. Made bugger-all difference. It was actually loading after about 8 seconds today anyway (a record!), but for the last few weeks has been taking up to 1 minute or, sometimes, locking the whole system up requiring a reboot.
Add this to the "known" problems with V+ (i.e. audio drop-out on recordings) that have been going on for months without a fix. Very poor