Been having seemingly for no reason random database errors,easily fixed but not the point.
Have traced problem to (paid for) backup software which was recently installed.
Vendors are not much help but have disabled it for now & have been recommended a replacement.
Reverted to daily manual backups to secure online storage for now.
Trouble is that i want to ensure that no trace of old program are on server so i intend to close board tomorrow morning & rebuild server totally,hopefully back up by about dinnertime.
Sorry about this but i would rather be safe than sorry.
No posts etc will be lost
Just discoved that others are having this problem as well