Memory comes and goes in flashes - - -

There is a KNOWN VIRUS that can cause a "link to missing .dll," if your antivirus "stops" but doesn't "clean" completely.

If the missing .dll happens to be called sp.dll, you may have been hit by the Troj/JetHome virus. It has a couple of other names, and the .dll name may vary. It is relatively innocuous.

This virus attempts to change your home page, either to a "fantastic financial offer" or to a porn site, and sets itself up to re-run everytime you boot up. Norton, McAfee, or any other good av program will usually prevent it from executing, but frequently will let it put its shortcut into StartUp before it gets "killed." Then, since the program is no longer there, the shortcut "fails" every time you start.

Check your favorite AV site for details if there's a possibility this might be what you're getting.

John