my computer was on for almost 15 days (in sleep/screen off) when not in use, and i was just seeing how long they go without restart, dont ask why.. well i was watching a youtube video and a kernal panic came up (you must restart your computer blah blah) and i think i just hit the 15 day mark (or close).. well anyway i restarted the computer and it is working fine..is it anything i should be worried about?