I recently replace my CRT monitor with an LCD monitor. It came with an analog cable. What is needed to hook it up to the digital i/p? Is it costly? Also, when I run DOS programs, the monitor turns off momentarialy and does so frequently. Is there a fix for this? I'm running Win XP Pro on a PC with an 800MHz processor. The old CRT didn't do the blinking on DOS programs as this one does.