Thats odd.
From my own observations, the tos only appears if you have never yet accepted the tos/pp before.
But once you have, you can access everything else on the site without any further prompts.
UNLESS the admin had selected to reset user TOS/PP to force them to re-accept the TOS/PP maybe because he had modified it with new terms etc.
I will keep an eye out if your issue also happens to me, but so far i haven't seen that except what i've already mentioned in my own experience.
http://mognet.no-ip.info