USB lost

[David McCormick]

I have an AMD 64 bit system and run 64 bit Ubuntu without problems. I 
installed 32 bit Ubuntu on the machine so that I could use my scanner 
and use plugins that wont work on 64 bit. Now the problem. When the 
machine sits unused for a period of time anywhere from 10 minutes to 
overnight, it varies, all USB connectivity is lost and I have to reboot 
the  machine. Has anyone else had this problem and I just missed it on 
the list or is this something new. I didn't have this problem until the 
next to last set of upgrades.

I don't have the problem on my 32 bit laptop,

Dave