Possibly. Any time you're troubleshooting (no matter what it is) you want to eliminate variables that may be causing your issue. I'd start with that as well.anything to do with task killer?
Yes, please ALWAYS include at least your email account types (gmail? Exchange? IMAP? POP? Something else?) and whatever app(s) you're using to access them. There are so many possible permutations on the Droid that we can't even begin to assist with troubleshooting without such information. We not all set up the same way and we're not psychic.you might want to add some more details.
we really cant help if were guessing too