Since I bought it in Dec 2022, My U59 does not boot in any of the following circumstances.1. After regular shutdown and press the power button.2. when choosing "power --> restart" it powers down but never comes back3. after it goes to sleep mode, there is no way to wake it up.    even if it is set to "never sleep", it goes to sleep very often if it is not active for hours.  NO BOOT symptom:1. Power button lights up and the fan can be heard running2. No display at all. Not even BIOS3. Fan stops running and the power button LED goes off.It just cycles through step 1 to step 3 forever and has no display at all. have to pull the power plug; press and hold the power button for a while;plug in the power again and press the power button to power on the PC.But it is getting harder for this trick to work.