I dusted off my old IBM Thinkpad labtop and slided to power on, the hard drive made it's usual pleasant noise and the lights turned on, but the lcd screen was black and the pc was making a beep code telling me something was not working graphically, I hooked it onto an old tv to test if it was the gpu that had failed or if it was the screen and it worked perfectly on the external tv screen. So how do I fix it, ik its very slow and I cant game or even work on it but its still important to me since it was my first pc, I dont want my first pc to die 🙁 It has windows 98 on it