305 upload issue

I've tried uploading my bike workout for today(04/25) multiple times to no avail. It gets to the 'transfer complete' and gives me the option to upload the data, then once I do that the progress bar shows up and it sits there for ~15 seconds before popping up and saying something about there being a problem and asking me to relay the info to you(along with a bribe of cookies). So here I am, relaying said info. Prior to this workout, uploads have been going off without a hitch. I've tried restarting my browser(Firefox 3.0) to no avail, and the Garmin training center can pull down the data without issue. I'm trying this on XP, btw.