I'm using LyX 1.6.8 on Windows 7 Pro x64. Today I installed Adobe Reader X – and it doesn't work with LyX any more: Adobe Reader does not open the generated PDF after you created the PDF with LyX. It only shows a welcome dialog like "Open last files – Acrobat services – etc".
First idea of course was "file association" – But the pdf file association is alright. Double clicking a pdf works from any place (also paths with spaces).
Anyone having ideas? Confirmthis? Maybe related to some 64 bit thing?