Did you click on the link "
this post" in my post hereabove?
Then it should have been clear to you that I meant key [5] (=reset) on the PC's numeric keypad.
Ever tried the option "movie mode" by pressing [M]-key?
Do you really need DVobsub for your subtitles?
Are your subtitles indeed picture-based?
If they are text-based BSPlayer can play several formats natively (without an external utitlity).
(See item 9 of my Help2Help-post)