topic say it: 
in the piano roll view, when i hit play, when the vertical bar is at the right end of my screen, instead of updating piano roll view following the vertical bar, the vertical bar disapear and my piano roll view stick at the same place.
is there a way to fix this and make it follow the project like usual?

i know my english suck but does you guys hear what i mean?

sorry cant update to X2a (winxp).

Toggle the "Scroll Lock" key on your keyboard. That may help. Not at computer
and don't use piano roll very often.

i have had this happen countless times. havnt taken the time to figure out exactly how to reproduce the bug yet as I usually just stop and restart or close and reopen the window. post it up if you do.