imagio memory?

[really new 2this]

i actually just turned off my tf3d on the Imagio and power cycled the phone and it dropped from 80% to 48% and steady .But the hole point of this phone was the tf3d. Now I'm running windows default . Should i get rid of the phone or should i try mobile shell 3.5 . That could be cooler than tf3d .oh yeah b t w for what ever reason my computer won't recognize my phone! . That makes me abit mad. Keeps giving me the ( windows usb driver has malfunctioned and windows will not recognize ). any suggestions for this ? Please help . maybe i am the dumb a.. !