USB problems: start-up, mouse, WLAN

Can somebody please help with diagnosing the following three problems?

Distro: Angstrom
Build: Linux version 2.6.28-omap1 (build@debian) (gcc version 4.3.1
(GCC) ) #3 Tue Feb 3 11:53:45 GMT 200
Hardware: B7

1) After a short amount of use my mouse stops working. The following
message is logged:

lorin:

Do you have a self-powered USB hub, i.e., one with its own external
power supply? I had problems similar to yours when I was trying to
power my USB hub from the BeagleBoard, which only sources 100mA.

The OTG USB comments in the BeagleBoard FAQ
http://elinux.org/BeagleBoardFAQ#USB_OTG_connection_.231 may be
helpful. There are also some USB comments in the BeagleBoard wiki
http://elinux.org/BeagleBoard#USB.

Hi John,
No I have a powered hub with a 1.5A power supply. I have the
beagleboard powered by a seperate 5V 650mA P/S.
Thanks for the links.
Lorin.