Front usb ports won't respond, back ports do

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http://askubuntu.com – I'm not sure when, but my ubuntu machine stopped responding to front usb ports. Any device plugged into the rear of the machine work fine, but the front don't do anything. My phone won't even draw power when plugged into the front. I am using the ringtail experimental build, but they were working fine last night. The lsusb command returns Bus 001 Device 002: ID 040a:4066 Kodak Co. Bus 002 Device 004: ID 058f:6362 Alcor Micro Corp. Flash Card Reader/Writer Bus 005 Device 002: ID 04f2:0841 Chicony Electronics Co., Ltd Bus 005 Device 003: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse Bus (HowTos)