Dual Monitor Display Help

[Dan Track]

Hi

I've got a ATI 3870 graphics card with two DVI connections. I've got
one monitor running but how do I configure a second monitor?

If I go to the display option and select a generic ldc 1280x1024 I
can't press the "ok" button. It's as though it can't see the second
monitor.

Here's my lsmod:

Module                  Size  Used by
drm                   145380  0
i2c_core               20500  1 drm
bridge                 45336  0
bnep                   14336  2
rfcomm                 34064  4
l2cap                  21632  16 bnep,rfcomm
bluetooth              46308  5 bnep,rfcomm,l2cap
fuse                   47516  3
sunrpc                153876  3
ip6t_REJECT             7296  2
xt_tcpudp               6656  1
nf_conntrack_ipv6      15992  2
xt_state                5888  2
nf_conntrack           50132  2 nf_conntrack_ipv6,xt_state
ip6table_filter         6400  1
ip6_tables             14864  1 ip6table_filter
x_tables               15236  4 ip6t_REJECT,xt_tcpudp,xt_state,ip6_tables
cpufreq_ondemand       10124  8
acpi_cpufreq           11660  0
loop                   17164  0
dm_multipath           18056  0
ipv6                  234300  34 ip6t_REJECT,nf_conntrack_ipv6
snd_hda_intel         321692  1
snd_seq_dummy           6532  0
snd_seq_oss            29212  0
snd_seq_midi_event      9600  1 snd_seq_oss
snd_seq                44736  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device          9740  3 snd_seq_dummy,snd_seq_oss,snd_seq
snd_pcm_oss            36480  0
snd_mixer_oss          16384  1 snd_pcm_oss
snd_pcm                60676  2 snd_hda_intel,snd_pcm_oss
snd_timer              20744  2 snd_seq,snd_pcm
snd_page_alloc         11016  2 snd_hda_intel,snd_pcm
snd_hwdep              10244  1 snd_hda_intel
snd                    46136  11
snd_hda_intel,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_hwdep
iTCO_wdt               13604  0
iTCO_vendor_support     6916  1 iTCO_wdt
firewire_ohci          22020  0
firewire_core          35360  1 firewire_ohci
floppy                 52180  0
soundcore               9288  1 snd
wmi                     9640  0
serio_raw               8708  0
pcspkr                  6272  0
crc_itu_t               5760  1 firewire_core
tg3                   104452  0
sg                     30900  0
sr_mod                 17064  0
cdrom                  33304  1 sr_mod
ata_piix               19076  0
pata_acpi               7680  0
ata_generic             8452  0
dm_snapshot            18468  0
dm_zero                 5632  0
dm_mirror              20096  0
dm_log                 12036  1 dm_mirror
dm_mod                 47924  18
dm_multipath,dm_snapshot,dm_zero,dm_mirror,dm_log
ahci                   27016  2
libata                132456  4 ata_piix,pata_acpi,ata_generic,ahci
sd_mod                 26008  3
scsi_mod              122748  4 sg,sr_mod,libata,sd_mod
ext3                  108680  6
jbd                    40852  1 ext3
mbcache                10116  1 ext3
uhci_hcd               22928  0
ohci_hcd               22532  0


Thanks for your help

Dan