This is a lite version so the ful Plugin is not avalible.When it come to your install it sounds like one of those WM things we all experace when downloading apps.Uninstall,softrest then reinstall.When it comes to static on wav tone hmmm the wavs were taken down to 88kbps.All the beta testers on 3 and 4 did not pic up on a static issue.
Update...
You were using the full version before download of 7.2.You more then likly had leftovers.Unload,memaid,softrest then reinstall and you will be good to go
