Hey guys! Just picked up my B121 for $150.00. It is in reasonably good condition. Screen is emaculate and all in all I am pretty happy with it. The seller said "seems to be in working order but missing power cord". So, I bought one from E-bay. after market for about $15.00. I see now why he would not want to sell it with the power cord. The male tip inside of the tablet is a bit loosey goosey. Just a tap on the wire while it's charging causes the charge light to go off. I have to readjust the plug to get the light on again. I think he knew there was a problem. But, for $150.00 (and the price of the power adapter) I'll just use it like it is. I wonder if the problem could be the after market tip? Just not a good solid fit with the male connector? Hmm. I put Windows 8.1 on it and seems to be good. Someone mentioned using with Windows 7 drivers for the video and I made that change tonight. Right before the battey died so didn't get a chance to really see if it made any difference, bad or good. Battery lasts a wee but over 2 hours if I keep the screen on the dimmest setting. Replacement batteries aen't cheap and I have to crack the case to replace it. I have the skills to do that but for now, I'll just keep charging it after a couple of hours. What's up with all these doors over the access slots? I haven't figured out how to get the SD slot door open with taking a paring knife to it. I need longer finger nails. The tablet is SPEEDY! I like it. Speedier than my Dell 8 Pro 8" tablet. But the Dell has it way beat on the battery life. LOL.. Why spend $1000.00 for a Surface 3 when you can get one of these Oh, the longer battery life and faster CPU. To some worth the extra cash. I'll keep reading all the posts here. If I have answers I'll help. Or, if I need help I am sure there are those here than can help. Just wanted to say Hi!