Cannot upload data to RAID0 array without failure

I've been running a RAID0 array using a Silicon Image Sil 3114 SATA Controller and 2 SATA Hitachi 500GB drives for about 5 weeks now. I have 2 striped groups between both of the drives. The main group is 890GB (NTFS with about 150GB stored) and the other is 40GB(unformatted, unused space), both striped (RAID0) no mirroring.

Now here in lies the problem. I was running a Torrent program overnight and checked the progress of the downloads the following day (15 hours between checks). When I checked everything, there was an error message in the downloader saying that there was no media to download to. So I checked the RAID manager and one of the striped groups in my 890GB group had failed. Error Message: RAID group/Path/Target 1:1:0, Sense Data 70:00:0b:00:0 (ScsiError) The controller is SATA but Windows recognizes it as Scsi for RAIDing purposes. Now this is where it gets hairy. The entire drive did not fail, just the part of it hosting the larger striped group. I know this because the smaller 40GB striped group is still functional (and it is shared between the same 2 drives).

Now after troubleshooting this for a minute here's what I've come up with.
1. If the drive hosting the bad stripe group is physically unplugged/plugged back in, it will reset and everything works.
2. I can download files from the 890GB srtipe group without error, however when trying to upload, the group fails.
3. The problem is not with the physical drive, because the RAID manager program has showed that the stripe has failed out on both drives, on seperate occasions.
4. I've formatted the second stripe group (40GB NTFS) and can do everything without a problem (upload/download) so it has something to do with the actual 890GB RAID group.
5.All devices (SATA Controller/Drives) show no driver errors in the device manager.

If anyone thinks they have any input for a cause/reason/fix to this, please share.

Hahahahaha Yea whatever you big baby hahahaha