Error... my posts are coming as first post

When I am replying old threads .. my thread is coming as first thread not the last. Is this an error or some problem with my settings?

Check your user setting.

Some setting problems in your personal forum setting -
Settings -> General Settings -> Thread Display Mode -> select - Linear - Oldest First -> Save changes

Check now and tell us if it has fixed the above issue!

Thanks Expert! This did the trick...All good now.