Losing hyperlinks when saving OO(Impress) as PowerPoint

[User1001]

I don't know if this is the best/proper place to ask this question, but
- everytime that I save an OpenOffice (Impress) presentation with
hyperlinks in it as a PowerPoint (.ppt) presentation, the hyperlink
values are either lost, removed, or transformed into something that
PowerPoint doesn't recognize. Is there a way to correct or prevent this,
or is it a "known bug" within OO-1.1.5/-2.0?

Thank you.