LyX ⇒ weird pdf export

[mihajovics]

Hi guys,

I wrote my homework in the newest Lyx with newest Miktex (updated everything today, may 20) on Windows 8 64bit.

The strangest thing happened, the exported pdf file opened, but displayed for the most part "fuzzy", unreadable fonts in different pdf readers: adobe reader and STDU viewer.
Even stranger, the amount of fuzziness was not the same in the programs, in adobe it was semi readable.
Yet the pdf opened up perfectly with MikTeX and Google Chrome.

I used the export function in Lyx and had the same results with every pdf export option.
DVI exports were good, but I could only check it with MikTeX's Yap.
PS exports were also aplication dependant, it read good with GSView but IrfanView was unable to open it.

Any ideas what's going on and how to fix it? I uploaded the .pdf and .lyx

P.S.: I tried the typical Windows solution of reinstalling everything and hoping for the best...