The ROM module order IS slightly different in 5.18 to 5.16, so any unplugs need checking, which ever version you re-flash On 08/03/2012 10:41, cj wrote: In article <526d2d9577mail@xxxxxxxxxxxxxxxxxxxxxx> <526d2d9577mail@xxxxxxxxxxxxxxxxxxxxxx>, <mail@xxxxxxxxxxxxxxxxxxxxxx> <mail@xxxxxxxxxxxxxxxxxxxxxx> wrote: When the ADFS::HardDisc4.$.!Restore516 is run, are there any bits which were changed with the 5.18 flash which are then not changed back? The flash and reflash change only the contents of the ROM. There's no way the ROM can be partially changed. I assume you have made sure there is nothing unplugged, which could cause problems when reverting. John Stop press! Just announced - Price Promise 2p/KWh extra on feed in tariff The Utility Warehouse Price Promise means you can benefit from: The UK’s cheapest Home Phone The UK’s cheapest Home Phone and Broadband bundle The UK’s cheapest Mobile tariffs The UK’s cheapest standard Gas and Electricity Or they will give you back Double the Difference! Charges, terms and conditions apply. For full details of the Utility Warehouse Price Promise see http://www.ucallusave.co.uk Intrigued? Call me John Ballance C.Eng MIET - jwb@xxxxxxxxxx - 07976 295923