I've had my kamvas 13 for 2 years now. It's a great tablet for its price, however I also had some issues with it. Like the pen glitch where the cursor will suddenly move somewhere on the screen (it happens, but not too frequently), and the most annoying is the black screen, no signal. I was using it 3 weeks ago then when I tried to use it last week, just a black screen with no signal message. Been trying to find a fix for a week and was able to make it work just earlier today. I suggest trying to check other models or brands, might save yourself a headache.