Changing from one Service to another -- missed this bit!!

From the TP manual:"You might want to compare the quality that you get from the different map services - either online in your web browser before flight - or from within FSX (save your flight, exit TileProxy,switch the service in the INI file, cleanup the "TileProxy Photoreal World" folder with the corresponding "Cleanup World Folder" menu item, restart TileProxy and reload the flight). "I missed the bit "cleanup the "TileProxy Photoreal World" folder with the corresponding "Cleanup World Folder" menu item". I merely swapped over from one provider to the other.Anybody care to explain what this is all about - I am a bit confused about the "Cleanup World folder and also the "Manage Service caches" (where you can delete particualr areas form particular Services.I think I will now delete everything via the "Cleanup World folder" and also via "Manage Service caches" - and see what I get in the Florida Keys.( see my previous post re disappointing screenshots) Barry