ahh...isuga marcial ui,.hehehe kasuway pod ko ana bah..paita wa jud masulbad. Unsaon mana cial? something wrong sa monitor tingale, dli sa PC .. ky sa akong amigo gipailisan na lang nya ug monitor..wala man nimo gi state ang details so heres the possible cause for that:
1. may be your PC is set to sleep mode for a certain time
2. if you use a dedicated graphics card maybe there is problem on it.
3. cable connection from your CPU to your monitor