Do you by any chance have a sony ericsson phone, or have had one in the past? The reason I ask, is because there is a Sony Ericsson driver that gets put in the system 32 folder in c:\windows that can play havoc with USB.
If you do, delete a file called seehcri.sys and then reboot, then go into device manager and USB Root Hub and update the drivers.
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sounds to like either the ports are dirty and need a clean or they've just worn out (not connecting properly)
how happy are to play around on the inside of your PC
if to do so can you grab an add in usb bracket like this
and plug it into the same connector that the front USB ports are and see if that makes a difference if it does then the ports a worn out or dirty if cleaning them doesn't fix it then replacing them is the only option
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Hi, hopfully you are not using a usb mouse if you are may want to find a PS2 mouse turn your computer off plug it in and boot it again just for this part
long shot but try going into device manager and expand universal serial bus controllers. right click and unisntall everything listed under it. then reboot the pc let the controllers reinstall and see how you get on. post back so we know if its fixed it.
Hu? did i do that? 16Mb (EDO RAM), K6-II processor, 2Mb of onboard graphics. 32k dial up modem. 12 speed CD ROM. 5¼-inch floppy drive. 500Mb HDD.