Icon Preview in SL

[iSlave]

Okay, this is going to probably sound stupid, but I can't get icon previews to work in Snow Leopard. Everywhere says to just hover your mouse pointer over a PDF or movie file and play button should appear? This is not happening! What am I doing wrong??


IGNORE!! Problem solved...

 

[iSlave]

Spoke too soon.....video preview is now working (increased the size of the icons), but I can't get PDF files to work?

I just get the standard Preview pdf icon, but no page forward/back controls...any help??