Dear all, I download Ebook 2.2 and install it,then I download some Ebooks. I try to test it(Ebook 2.2). When I open Delphi-basic-teah is O.K. but when I open other Ebook like Pascal-trulybook, It always shows some message like "Interface not supported" I try to close it' but don't work, so I press Ctrl Alt Del and it close. I don't know what's happen? I guess, maybe about my system or this program's bug. My system is Win98. Thank you for everyone.