stuck on RE SCANNING headers
Posted: Mon Jul 13, 2015 9:13 am
Long time UE user, but recently, every time I start program or just read read headers, it RE SCANS headers. Did I accidentally click something? 
Examine settings edit menu->properties->general, rescan.
You can disable rescan or limit it to last X headers and check "don't optimize".
Not all servers will provide quality headers, maybe only if you use astraweb or giganews.
ReadNews (ngroups etc), Highwinds (usenetserver, eweka) not perfect as to retention and numbering. Moreover if something goes wrong they may feed newsreader with corrupted headers causing spike in RAM usage.