Metal Gear Solid Graphics Problems

I'm playing Metal Gear Solid and I've found a problem. Theres a certain graphic that doesnt work, a critical one. In the codec screen, where you make calls to people, it doesn't highlight the frequency, so all I can see is 888.88. The digital read out isn't glowing. The problem with that is, you have to find a certain frequency to call Meryl. I've found my original Metal Gear Solid game for PlayStation so I know what the code is, but I can't select the right frequency because the graphic isn't working correctly. I've tried using a downloaded ISO and also running the game from the disk directly and I'm getting the same problem. Is there something I can change in the video configuration to make this show up?

what emulator are you using? What plugins? and whats the configurations of your
video plugin?

try using P.E.Op.S software plugin. I heard the petes plugins aren't really good with MGS

I'm using ePSXe with petes plugins. I'll try the other plugin, thanks.