Safari 7 Windows Completely Invisible
I recently upgraded to Mavericks and Safari 7.0 and it appeared to work fine. But yesterday, Safari froze and had to be forced quit. Now every time I open Safari, absolutely no window appears. I can not see preferences, browser windows - nothing. But I know the program seems to be working, for if I use the Apple menu or keyboard shortcuts, Safari shows windows are open winder "Window" but they are completely invisible. Any idea what can be causing this? I already emptied cache and restart my computer and ran in 32 bit mode. I don't know what the cause is.
Safari-OTHER, OS X Mavericks (10.9)