KDE does not recognize PDF anymore

[RDB]

Hello,
I have a strange problem. This is Fedora 8 system with KDE-3.5. For some 
reason, KDE stops recognizing PDF. The PDF icon does not show up for PDF file 
on Konqueror, trying to open PDF file will ask the program I want to open it 
with. Entering kpdf, kpdf will open and just say "One page document loaded", 
but shows nothing on the screen although I know for sure the document is 
multiple pages.

I tried launching KPdf, and try open PDF file. On the Filter, it just says 
"Unknown, Postscript", it seems that even KPDF does not recognize PDF. Same 
result as above when I try to actually open a known good PDF file (e.g. Evince 
will open it).

I tried uninstall and install kdegraphics and still does not fix the problem. I 
tried creating new clean user, removed ~/.kde, all to no avail. Very strange.

The last thing I did before this happen was that I remove AdobeReader_enu and 
nsplugginwrapper because I hate that PDF always try to open Acroread inside my 
Firefox. I wanted to just use KPDF as external app, and then this problem 
happened. I cannot even use KPDF stand alone.

Any help is greatly appreciated, as this is practically my workstation that I 
have to use.

Thanks.
RDB