Is this because of changes that are being made in the background or is there a bug?
I'm not experiencing that ... I suspect one would have to look at your indexer and other logs.
Thanks MJ - if it carries on I'll submit some logs.
There have been a number of small updates, which I detect because I set Automatic Updates to NO (in Program Settings) and don't restart unless it is requested by a download.
Try to limit the number of restarts you make, but if the problem persists you should submit logs.
Thanks Dave