Greetings! Had 5.11 and decided today to flash 5.16 Rebooted the machine to clear the decks, deleted Clockfixer, and did the flashing. It reported OK completion. Rebooted the machine, all seemed well, even clock correct.Everything seemed to work. Used Netsurf with no problems. BUT when I tried emailing....... I have Netfetch 2.20b and Messenger Pro to match. A click on the Netfetch icon (on the bar) produced: File 'System:modules.Network.Resolver' not found Looked in '!System:modules' and found nothing there, not even 'Network', let alone 'Resolver'. Looked in Netfetch 2.20 manual and found that if Netfetch complained about missing modules, I should download them from what looked like ancient addresses. So far I have not tried, because I have a back-up copy of !Boot - the one I was using under 5.11, and it has 'System:modules' just as empty as the present post flash !Boot. This baffles me completely and I am unwilling to try anything without expert advice. Further data: I pinged the router - no problem. I share this router with the wife's PC and that machine emails without problems (this message is coming from it). So it is not a router problem Messenger seems to work OK at handling mails received and saved before the flashing. Could not find anything like this in recent traffic so I am asking for help. I will be glad of anything anyone can suggest. Best wishes, CJJ