in the control panel, under the Maintenance tab, "rebuild the forum stat files" for forum 8 and that will fix your first problem (it deletes and recreates the _threads file).
in the same control panel tab, rebuild member stat files. that *might* fix your 2nd problem, im not sure.
clear cache after doing these 2 things and see if the problems remain.
Donate to UBBDev today to help aid in Operational, Server and Script Maintenance, and Development costs.
Please also see our parent organization VNC Web Services if you're in the need of a new UBB.threads Install or Upgrade, Site/Server Migrations, or Security and Coding Services.
