Hi, I got the same problems. But change a chmod on 755 on cache folder & subfolders doesn't work. New files are maked with chmod 666. When I clear the caches folder and refresh a page, subfolders have a chmod 771. I have only smartys folder in cache (I turn off a cache in administration panel). Can someone help me with that? Thanks in advance.
EDIT: Already something've done with my FTP/server, now even I clear a cache I have a blind page. Earlier when I clean a cache, first page was turn on, but when i refresh - blind page. Now even after clearing the cache I have white background only. I don't know what I done wrong. I didn't changed something on FTP.