Suddenly very slow to start

[David Bowskill]

Hello Fellow Ubuntu Users

For some strange reason my Ubuntu 10.04 has suddenly become very slow to
boot.
I tried to repair the system at boot ( pressing escape)  and then
selected 'repair broken packages'.

I have tried the above several times but still keep getting error
messages as follows:

usb 1-4 device descriptor read/64,  error -110
unable to enumerate usb device on port 4
unable to enumerate usb device on port 5

It also thinks that there is a program still running, although it has
started from cold.

Can anyone tell me what these mean and how I can fix them ?

Thanks very much

David