https://www.infopathdev.com:443/blogs/hilary/archive/2012/01/30/username-and-sandbox.aspxYou may have gotten the feeling from my latest flurry of cranky and short IPFS related posts that I've been struggling with browser forms a bit lately. You would be correct. I had a 2010 form with code that I published as sandboxed to my SharePointenCommunityServer 2007 SP3 (Build: 31118.962)