My copy of Ralf Brown's interrupt list (Copyright (c) 1989-1999,2000 Ralf Brown) lists 0Ah as a valid 640 x 200 4 color video mode for the PC Jr. and Tandy 1000, and as a 132 x 25 text mode for some Everex video cards.

You might try getting a couple of those "cans of air" used to blow dust out of computers, and spray it until it's blowing quite cold, then aim the blast of cold freon or whatever onto suspect parts. If it alters the behavior, it's likely the cause.

EGA not only has to transfer memory data over the bus, but there are a lot of port writes to change planes etc. Ports were typically held back with wait-state-like delays to ensure that old 8088 era cards would still work. Micheal Abrash's articles from DDJ complain how the 486 took 66 cycles for …

You do have an additional graphics card installed, right? The Voodoo 1 is only for 3D stuff.

> Isn't that a *nix program? Not part of windows? OP spoke of using Windows search but he also refers to a 3rd party program. As I said, it was included in the Borland programs, and there's also a group of programs called UnixUtils that provides much of the unix functionality that MS left out.

There's been a program called grep (grep.exe for msdos stuff) that's been around forever, it even came with the Borland Turbo compilers back in the day.

I've been playing with Dosbox-x for about a month now, certainly not expert in configuration, but there are options in the SOUND tab to increase or decrease recording volume.

You might also try the SciTech Display Doctor to see if that will get it going. (Edit by Dominus: removed link to questionable page with download and serial)