Safari 4 has known issues with showing just a white screen randomly. There are many threads on the Apple support forums regarding this, here is an exmaple: http://discussions.apple.com/thread.jspa?messageID=9785751 . Personally, I use Google Chrome which is also a WebKit-based browser and I’ve never had an issue.

It seems that with the iPhone encryption issues ( http://www.broadbandreports.com/forum/r22999133-iPhone-31-breaks-Exchange-Sync-for-pre3GS-phones , and even on the new 3GS: http://arstechnica.com/apple/news/2009/07/new-iphone-hardware-encryption-not-even-close-to-hack-proof.ars ), the Snow Leopard data loss issues ( http://news.cnet.com/8301-31021_3-10373064-260.html ), and Time Capsules dying early ( http://gizmodo.com/5379865/are-apple-time-capsules-short-lived , http://timecapsuledead.org/ ) Apple doesn’t have it’s software development in line just quite yet.

With all these issues, it’s no surprise that at least a few people feel the same as this columnist: “I suspect that Apple has set back its enterprise cause several years, if not permanently.” ( http://www.itbusiness.ca/it/client/en/home/News.asp?id=54536&PageMem=2 )