There could be quiet a few sources of this type of error. And unfortunately, solutions to them wont be too easy apply.
1. Check online documentation of the kit you are using. Maybe you are missing something.
2. Try to plug the kit on a different usb port. Or try unplugging usb peripherals from the CPU like printer, scanner, etc. Sometimes there isnt much power being supplied by the power supply of the CPU.
3. Try using any other controller which is compatible with the kit.
4. Get the latest copy of the programmer software. Maybe there is some bug making the software incompatible with your system.
5. If all of above doesnt work, then contact the company which made the kit.
Cheers.