Has anyone else encountered a weird bug where the disk space will show up way larger then it should for someone?

Example:

30,000 MB of Disk Quota shows up as 3000000029994.34 Megabytes (Used)

While

500 MB of Disk Quota shows up as 500 Megabytes.

Is this a bug, or just some weird setting that I have on my FreeBSD 5.4 server that can be resolved?

Thank You,
Pat H.