low resolution w/ radeon 9800 pro
 

I just installed Slackware 10 (kernel 2.4.26), and I noticed that the highest resolution I can choose is 1024x768. How can I get a higher resolution? I tried installing new drivers (ati-fglrx-8.10.19-i486-1tsu.tgz) but then X would'nt start :o

lspci:
00:00.0 Host bridge: nVidia Corporation nForce2 AGP (different version?) (rev c1)
00:00.1 RAM memory: nVidia Corporation nForce2 Memory Controller 1 (rev c1)
00:00.2 RAM memory: nVidia Corporation nForce2 Memory Controller 4 (rev c1)
00:00.3 RAM memory: nVidia Corporation nForce2 Memory Controller 3 (rev c1)
00:00.4 RAM memory: nVidia Corporation nForce2 Memory Controller 2 (rev c1)
00:00.5 RAM memory: nVidia Corporation nForce2 Memory Controller 5 (rev c1)
00:01.0 ISA bridge: nVidia Corporation: Unknown device 0080 (rev a3)
00:01.1 SMBus: nVidia Corporation: Unknown device 0084 (rev a1)
00:02.0 USB Controller: nVidia Corporation: Unknown device 0087 (rev a1)
00:02.1 USB Controller: nVidia Corporation: Unknown device 0087 (rev a1)
00:02.2 USB Controller: nVidia Corporation: Unknown device 0088 (rev a2)
00:06.0 Multimedia audio controller: nVidia Corporation: Unknown device 008a (rev a1)
00:08.0 PCI bridge: nVidia Corporation: Unknown device 008b (rev a3)
00:09.0 IDE interface: nVidia Corporation: Unknown device 0085 (rev a3)
00:0b.0 IDE interface: nVidia Corporation: Unknown device 008e (rev a3)
00:1e.0 PCI bridge: nVidia Corporation nForce2 AGP (rev c1)
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon R350 [Radeon 9800]
01:00.1 Display controller: ATI Technologies Inc Radeon R350 [Radeon 9800] (Secondary)
02:06.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11)
02:06.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)
02:07.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
02:0b.0 Ethernet controller: VIA Technologies, Inc.: Unknown device 3119 (rev 11)

You could use the gtf program to generate a mode line.
It should be at /usr/X11R6/bin/gtf

Here is how I could generate a mode line myself for 1280x1024 at 60 Hz.
Be carefull that you don't choose to high of a refresh rate or resolution. You don't want to damage the monitor.