I don't know off hand what would be the cause, but, if the password on wakeup is not necessary to you, you can disable it.
Start + Control Panel + Power Options + Change When the Computer sleeps + Change Advanced Power Options
Now select No for the "Require a password on wakeup."
If you use sleep mode often and don't need it to be password protected, this would resolve the problem temporarily until it gets figured out.
If the password protect is necessary to you during sleep mode, then ignore this post? I'll take a look when I get home unless someone else has posted on it already.
Start + Control Panel + Power Options + Change When the Computer sleeps + Change Advanced Power Options
Now select No for the "Require a password on wakeup."
If you use sleep mode often and don't need it to be password protected, this would resolve the problem temporarily until it gets figured out.
If the password protect is necessary to you during sleep mode, then ignore this post? I'll take a look when I get home unless someone else has posted on it already.
