Sir, My LCD monitor "SyncMaster 712N" screen goes white when pwer applied then after few seconds the white screen turns into black and white with sharp white perpendicular line on screen left area. Remember that at this time no DVI cable is connected to the PC. When DVI cable connected to the PC all of sudden the screen turn into black complete. By removing the DVI cable from PC the Screen turn into white, then black and white. Please troubleshoot my problem and give your opinion that how to fix this problem also give me manual of SyncMaster 712N MJ17ASSBY .(Attachment of LCD Pictures). Thanking You jadd