I just installed Red Hat Linux on a new harddrive. The problem is when linux boots up past the boot loader my monitor goes wacky and says "Invalid Sync.". The same thing happens when I boot up from the linux CD and try to use the graphical setup (I was forced to use the text setup to install). I have an Nvidia Geforce FX 5200, but when selecting the video card I just went with the default, with 24 bit color depth. Is there anyway to change these settings now that I've already installed it and it wont boot up past GRUB?