A lot of people have been struggling with quicklook and Photoshop, so who's to blame here? Adobe or Apple?
Neither. In fact in most cases the blame is on the user side. First of all check your file handling, because maximize compatibility might be set to “Never”. That’s one culprit that does that. Did that help? If not there’s another thing that makes QuickLook show only a white rectangle instead of the PSD file. The problem is the color profile – you have to embed it in the file or QuickLook will be VERY confused. Poor ol’ QuickLook. Doesn’t matter if it’s CMYK or “DISPLAY”, just remember to embed it while you’re saving your PSD’s and all will be fine and dandy.
That helps A LOT while browsing for that one PSD from a year ago ;)
