thanks for reply.
I have tried this but nothing happens.
I had installed postie plugin, on that day, created categories and tested postie with multiple cateogries. it was working fine.
after a week, I checked again, and found
:posts after that day are not shown,even they are in db, these posts were created by postie..
:categories I created on that day not shown, could not verify db as I do not know which table to check for categories,
:postie plugin removed automatically. no longer seen in admin.
maybe I could check if its files are still there..
it happened to my blog also.
all categories are deleted automatically.
repair does not help. using 3.0.1
my bolg is at jobs.anomsoft.com