Not sure if this is in the right place. The problem is that LL freezes up from time to time. It happens during writing emails, or writing on a forum, facebook or using LibreOffice Calc. Only option is a hard reboot by pressing the power button, the system doesnt unfreeze itself. Yesterday i did ran a memory check during boot and it did not find any errors. Last time it did freeze was this morning. The laptop is a dual boot and i only have the problems on LL. I dont know what to do to fix the problem. I already reinstalled LL but still it freezes from time to time.