Hi All I have had 2 sites in the last 2 days reported with errors when someone visits the site. YSOD. I could not see anything wrong, no logging and the site had not changed for a number of weeks. So in both case I re uploaded a couple of files of the pages in questions and it started working again. I suspect I had some form of file corrupt on the server, I have never seen this before since developing in .net for 10+ years, so I suspect that something is corrupting files on the server! Anyone else seeing these sorts of problems lately? Thanks Matt