Debian Configuration :: Adaptec AAR 2410sa - How To Update Driver

I have the latest version of Debian installed on a Poweredge 1600SC. Everything is working ok, but the Adaptec AAR 2410sa PCI SATA card has started being a bit weird. I have a 1TB drive connected to it and noticed that occasionally it was unmounting the drive and messages appeared in the /var/log/messages like the following:

Jun 10 23:50:57 servertron kernel: [11246.006500] sd 1:0:2:0: [sdd] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
Jun 10 23:50:57 servertron kernel: [11246.006500] sd 1:0:2:0: [sdd] Sense Key : Hardware Error [current]
Jun 10 23:50:57 servertron kernel: [11246.006500] sd 1:0:2:0: [sdd] Add. Sense: Internal target failure

After a reboot everything would be fine. I did some research and heard that it could be the drive failing, so after running a disk check etc I connected up a new 1TB drive (was getting low anyway) to another SATA interface on the card and started trying to copy from one drive to another. Lo and behold, it happened on the new drive as well. Bugger.

I haven't had time to open it up and check the connections and will be doing this shortly, but thought I would check to see if it was using the best/newest driver, but am a bit stuck as to where to start. I've looked through some docs and help but can't really see how to update and check hardware drivers in debian.

lspci shows the following:

00:00.0 Host bridge: Broadcom GCNB-LE Host Bridge (rev 01)
00:00.1 Host bridge: Broadcom GCNB-LE Host Bridge
00:02.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet Controller (rev 02)

[code]....

Is there a newer version of accraid I can use? Even if there isn't, how would I go about identifying which driver the card is using and installing an update?