SWFUpload

Any information regarding this bug? It works fine for me and a couple of people, but seems to bug with this guy..

---SWFUpload Instance Info---
Version: 2.1.0
Movie Name: SWFUpload_0
Settings:
upload_url: /upload.php?session_id=6e291402c741c9eb17d6c2403195f710
use_query_string: false
file_post_name: Filedata
post_params: [object Object]
file_types:
file_types_description: Files for uploadFFS
file_size_limit: 0
file_upload_limit: 0
file_queue_limit: 0
flash_url: /javascript/swfupload_f8.swf
flash_color: #FFFFFF
debug: true
custom_settings: [object Object]
Event Handlers:
swfupload_loaded_handler assigned: true
file_dialog_start_handler assigned: true
file_queued_handler assigned: true
file_queue_error_handler assigned: true
upload_start_handler assigned: true
upload_progress_handler assigned: true
upload_error_handler assigned: true
upload_success_handler assigned: true
upload_complete_handler assigned: true
debug_handler assigned: true

SWF DEBUG: SWFUpload Init Complete
SWF DEBUG:
SWF DEBUG: ----- SWF DEBUG OUTPUT ----
SWF DEBUG: Build Number: SWFUPLOAD 2.1.0 FP8 2008-05-12
SWF DEBUG: movieName: SWFUpload_0
SWF DEBUG: Upload URL: /upload.php?session_id=6e291402c741c9eb17d6c2403195f710
SWF DEBUG: File Types String: *.*
SWF DEBUG: Parsed File Types:
SWF DEBUG: File Types Description: Files for uploadFFS ()
SWF DEBUG: File Size Limit: 0 bytes
SWF DEBUG: File Upload Limit: 0
SWF DEBUG: File Queue Limit: 0
SWF DEBUG: Post Params:
SWF DEBUG: ----- END SWF DEBUG OUTPUT ----
SWF DEBUG:
SWF DEBUG: Event: fileDialogStart : Browsing files. Multi Select. Allowed file types: *.*
SWF DEBUG: Select Handler: Received the files selected from the dialog. Processing the file list...
SWF DEBUG: Event: fileQueued : File ID: SWFUpload_0_0
SWF DEBUG: Event: fileDialogComplete : Finished adding files
SWF DEBUG: StartUpload: First file in queue
SWF DEBUG: Event: uploadStart : File ID: SWFUpload_0_0
SWF DEBUG: ReturnUploadStart(): File accepted by startUpload event and readied for upload. Starting upload to /upload.php?session_id=6e291402c741c9eb17d6c2403195f710& for File ID: SWFUpload_0_0
SWF DEBUG: Event: uploadProgress(OPEN): File ID: SWFUpload_0_0
SWF DEBUG: Event: uploadProgress: File ID: SWFUpload_0_0. Bytes: 32768. Total: 5185275
SWF DEBUG: Event: uploadProgress: File ID: SWFUpload_0_0. Bytes: 65536. Total: 5185275
SWF DEBUG: Event: uploadError : IO Error : File ID: SWFUpload_0_0. IO Error.
SWF DEBUG: Event: uploadComplete : Upload cycle complete.
Error Code: IO Error, File name: 103-sara_bareilles-love_song.mp3, Message: IO Error