[PROBLEM] seeking buged ?

[IriDium]

No buffering box!!! Very strange, then I think something has "stolen" the key strokes.

1) ssh into the RPi. sudo -i, apt-get clean, apt-get update, apt-get upgrade, reboot and see if that makes a difference.
2) If not, back to square one, disable the add-ons and try again. If it works, enable them one by one until it occurs again.
3) Switch on debug mode - go through the process of trying to seek - and then post the output of xbmc.log
or from a console (after switching on debugging mode) tail -f /home/xbian/.xbmc/temp/xbmc.log and see of up, down, left right are registered.

Try that - and see what happens.