1. Move your install out of program files. This will save you future headaches.
2. Probably a resolution issue. The game is real finicky about what resolution you run it at. Start in windowed mode and a simple resolution like 1024x768 and work up from there. Eventually you'll find one you like that is also stable.
3. If you're on Windows 7 or 10 set compatibility mode on eqgame.exe to XP SP2 (or SP3).
4. If you have a "newer" graphics card you may want to look into dgvoodoo2 so the game can use that card instead of integrated graphics.
See:
https://wiki.project1999.com/Tech_Support for other common issues.
-Mcoy