For some strange reason I can't send messages sometimes to the list. May be I was affected by this bug:
http://bugs.kde.org/show_bug.cgi?id=98069 though I don't get that message!
Till I can understand the issue, You may notice something odd regarding my messages. Things like missing posts, lars replies to unseen messages, sending sometimes from my local smtp server or my gmail account and the like ;) This is just to let you informed.
The HARAKAT are still too high above the letter or too low below it.
Please have a look at the attached screenshot. This is what I get with your example on the current Qt 4 build. I can't see any problem with it.
You are getting the correct behavior but this is not my case.
Qt 4.0.0-b2-snapshot-20050308 System: Linux 2.6.10-1mdk i686 AMD Athlon(tm) 64 Processor 3200+ GNU/Linux
Have a look at the attached screenshot!