Problems w/ LT Rage Pro and XFree86 on Red Hat 5.2

Gary Geisbert asks:"I recently got an AST ascentia M6000 laptop, and proceeded to install Red Hat 5.2 on it. When i got to the xf86config, I realized there was no support for the ATI LT Rage Pro chipset that's in this laptop, so i temporarily used a vga config. Then, I upgraded my xf86 to version 3.3.3.1 which *supposedly* has support for my chipset. I installed it and nothing works right unless I hook up an external monitor and mess with the CRT/LCD function key after X loads up. And after I exit X, I have to hit the same button a few times to get the LCD to synch back up. (which is how things worked before the upgrade). Has anyone successfully setup xf86 with a similar configuration? "