Hi, I bought a playbook over the Xmas period and have been experiencing problems with standy mode. Here's the problem. I check the battery and it's at 90% so I put it in standby mode and go to bed. I wake up the next day to wake it from standby mode and nothing happens. I swipe the screen and hold down the power button. Nothing. The only way to switch on the system is to plug in the wall charger. As soon as I plug that in I get a red light for 10 seconds, then I get a blnking green light followed by a red light. After all this the playbook then switches on and my battery is roughly the same as when I left it. This isn't just a one off as I have experienced this many times. Any help would be appreciated.