Time Capsule

Has anyone noted this problem and knows a solution? I recently installed Time Capsule and am still waiting for the inital backup to finish. I use a bluetooth (Apple wireless) keyboard and mouse. I noticed erratic behavior of my mouse, seems to have slowed down and is not totally under my control, at least while the backup is ongoing.

Also, does anyone who has ever completed the initial backup or subsequent backups know if a completed message appears? Otherwise, where do I go to confirm that everything I may someday need has been copied. I completed (I think) the initial backup on my Macbook and no message appeared.

Last point, any info on using a hub in the one USB port of TC will be helpful.

Regards from the Eternal City, Joe