This thread is in case someone else is having a problem with Sandboxie not automatically deleting contents of the sandbox. It took me a few weeks to figure out that the problem was a Chrome extension, and then that it was LastPass's new 3.0 release. After figuring that out, it was easy to find information online about the issue. Reading the latest LP reviews at the Chrome extensions site, people are not happy, it seems to be causing lots of problems. There are a few posts at the Sandboxie forum about the problem I was having. So for the first time in years I don't have LastPass loaded, and am trying KeePass. The last challenge was figuring out how to export passwords out of LP and into KP. Another frustrating hurdle involving setting up a spreadsheet program, but now it's done and it's great having Sandboxie up and running again.