@Callum every time I convert a kit into an Asset I export it (so it's a back-up). It's come to the stage that every time I import a kit or delete one I get the "not responding" screen. Sometimes it just clears in a minute and I can continue but sometimes I have to shut down. I deleted the program yesterday then re-installed it. At the moment I'm just keeping about 5 kits in the Assets Panel. I've just checked the size of one of the kits (for reference) and it's around 146,500kb. There are a number of scrapbookers now starting to move to Affinity and we've started a new facebook group so that we can learn from each other, pass on tutorials we've found etc. It would appear that existing facebook groups haven't been interested in using the Affinity products for scrapbooking so we're going it alone (Thanks for your initial reply).