Recently bought micromax funbook infinity. happy with performance except some bugs like.. 1. apps moves to SD card disappear after after i unmount USB thumb drive.(from settings>Storage>USBHOST1>Unmount shared storage). have to restart the tablet or remove the USB drive without unmounting. 2. Sometimes Screen does not wake up after sleep. Only black screen. have to long press the power button (can hear the cracking sound) and restart. But it occurs very few times. 3. HD games like NFS Shift and Hot Pursuit works but with white screen. Please suggest the solutions for these issue. p.s i dont want to root or install custom roms for these and void the warranty. Thanks.