Hi
Yes, they work properly...but....something I wasn't thinking about...actually what you may be trying to do...
I am assuming now that as you are adding subtitles in hebrew (??) and so, using a Hebrew font like Aharoni you will be need to use Windows special characters which, as such, dont figure in the normal 26 letter western alphabet and which, presumably aren't caterered for in VP or your keyboard.
If this is the case, and you want Hebrew letters it IS possible to use these to your subtitles although it's a bit convoluted but not too difficult.
In Windows open up your table of characters.
(Start- All programs - Accessories - System Tools-Character table)
Down arrow the font selection and pick Aharoni.(Or your other font of choice)
Indicate your hebrew text letter by letter by double clicking the characters in the table. The text will appear in the window below the table.
e.g. אבגדהוזחטיﬠשׁשׂשּׁשּׂאַאָאּבּגּדּהּוּזּטּיּךּכּלּך
(OK This is just a line of meanigless signs to me. Hope it's not something rude 
but I hope you get the gist)
Now click Copy.
Back in VP go into the subtitle window and Paste your hebrew text into the subtitle box.
Set your parameters-size colour position etc. then Add and Continue. This will work even if the selected font is not in the font window.
It would be possible to use the shortcut keys to add these special characters - like Alt+0234 to give ê etc. but it would mean you would have to memorise the codes for all your characters.
Hope this helps.
Nat