Add 1 more person to the list with the very EXACT same problem, Limewire opens up all on its own, and I am unable to open the options page for more than a second!!!! I uninstalled the older version I was apparently running (4.12.11), and updated to latest version (4.14.12). That seems to have, for the moment, solved my error msg. problems, as well as solved my continuous LW restarting issues. One problem remains, and that is I am unable to access the options page, It opens, but still just closes in a flash.
I am now going to try Birdys suggestions with downloading the AVG Free AV thing and see how that works. I'll let you guys know how it works out.