Hello Jernej, >> What has gone wrong?
> The file might be corrupted - try using Folder -> Maintenance centre ->> Check integrity/Repair Thanks! I already got suggestions in a PM by Alexander Petrari and did so. It helped, the problem is solved. (Creating a new folder, copying all messages from the problem folder to it, removing the message base from the problem folder after closing TB, and after starting TB again, moving the messages back). A minute ago I did what you suggested, and there were 2 corrupted folders found and repaired of which I didn't know. Would be nice to have that e.g. in a weekly schedule at closing or starting TB. -- Kind regards, Gunivortus Goos The Bat! Professional 64 bit, version 8.6.0.15 (BETA) Windows Pro 64 bit version 10, build nr. 17134 NordVPN vs. 6.17.6.0 ________________________________________________ Current version is 8.0.18 | 'Using TBUDL' information: http://www.silverstones.com/thebat/TBUDLInfo.html