Posted 28 July 2011 - 07:42 AM
1. In regards to the computer restarting on its own, please tell us if this occurs at random or when you are running a particular program / service on your computer. Also, right before it restarts, do you see any error messages or symptoms?
2. For browser related issues, please try uninstalling the older version of all browsers you use, download and install the latest version from the respective websites. Before you do that, be sure to use the Windows DISK CLEANUP feature on your C: (Primary) drive to clean out all unnecessary files.
3. USB problem - It might be driver related, a hardware issue with the USB port or the cable going bad (least likely)
If you have tried using the cable on the other USB ports and had no success, try accessing the Windows DEVICE MANAGER, uninstall all USB related drivers, restart your computer and let Windows reinstall the USB drivers for you. Try using the cable again.
4. Video skipping & laggy - A couple of things: Poor video chipset(performance), video driver issues (try reinstalling), Flash player issues(uninstall/install latest version). If the video keeps buffering from time to time, it could also be due to a slow internet connection.
Hope this helps.
ReviverSoft - Happy to help!