Here's my lsmod output

Module                  Size  Used by
ipv6                  263968  8
binfmt_misc            12456  1
rfcomm                 40600  0
l2cap                  27840  5 rfcomm
bluetooth              51364  4 rfcomm,l2cap
speedstep_lib           4548  0
cpufreq_userspace       6208  0
cpufreq_stats           6080  0
freq_table              4736  1 cpufreq_stats
cpufreq_powersave       1920  0
cpufreq_ondemand        7208  0
cpufreq_conservative     8140  0
nvidia               3713448  12
agpgart                35436  1 nvidia
video                  16004  0
tc1100_wmi              6916  0
sony_acpi               5548  0
pcc_acpi               11360  0
hotkey                  9508  0
dev_acpi               11396  0
i2c_acpi_ec             5696  0
button                  6704  0
battery                 9572  0
container               4608  0
ac                      4932  0
af_packet              23656  2
tsdev                   8000  0
floppy                 60564  0
pcspkr                  3880  0
rtc                    13672  0
ohci1394               35252  0
i2c_i801                8844  0
i2c_core               21760  2 i2c_acpi_ec,i2c_i801
tpm_nsc                 6912  0
tpm                    10464  1 tpm_nsc
snd_hda_intel          17856  1
snd_hda_codec          80448  1 snd_hda_intel
snd_pcm_oss            53760  0
snd_mixer_oss          19584  1 snd_pcm_oss
snd_pcm                92900  3 snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_timer              25956  1 snd_pcm
snd                    57764  8
snd_hda_intel,snd_hda_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore              10176  1 snd
snd_page_alloc         10824  2 snd_hda_intel,snd_pcm
shpchp                 97860  0
pci_hotplug            28412  1 shpchp
dm_mod                 59232  1
evdev                   9920  0
sr_mod                 17476  0
sbp2                   23624  0
ieee1394              103128  2 ohci1394,sbp2
psmouse                30628  0
mousedev               12132  1
parport_pc             36356  1
lp                     12548  0
parport                37384  2 parport_pc,lp
md                     47536  0
ext3                  138824  1
jbd                    59768  1 ext3
mbcache                10116  1 ext3
vga16fb                12840  1
vgastate                9888  1 vga16fb
thermal                13320  0
processor              23816  1 thermal
fan                     4708  0
usbhid                 36096  0
8139too                27264  0
mii                     5920  1 8139too
uhci_hcd               32720  0
usbcore               121180  3 usbhid,uhci_hcd
sd_mod                 19680  4
ide_cd                 42148  0
cdrom                  40096  2 sr_mod,ide_cd
ide_generic             1600  0
ata_piix               10308  0
ahci                   12164  6
libata                 51140  2 ata_piix,ahci
scsi_mod              138472  5 sr_mod,sbp2,sd_mod,ahci,libata
piix                   10980  1
ide_core              140628  3 ide_cd,ide_generic,piix
unix                   29392  610
fbcon                  38880  72
tileblit                2592  1 fbcon
font                    8448  1 fbcon
bitblit                 5856  1 fbcon
vesafb                  8216  0
cfbcopyarea             4832  2 vga16fb,vesafb
cfbimgblt               3168  2 vga16fb,vesafb
cfbfillrect             4096  2 vga16fb,vesafb
softcursor              2496  2 vga16fb,vesafb
capability              4936  0
commoncap               7040  1 capability

I noticed some updates to hdparm this morning and some quoting it fixed the
problem for them, but not for me I'm affraid to say :(