D845PEBT2 MB and USB2.0 devices ? Can't get 2 USB2.0 devices to work at once.

I have my case (Kingwin) front usb port connected to the onboard usb
connectors. I cannot connect 2 usb2.0 devices at the same time. The second
one will not be recognized by XP also it doesn't appear to get power (eg, no
led lit on card reader). If I connect a 1.0 usb and 2.0 usb device, both
work fine. Should 2 usb 2.0 devices be able to run at the same time?

I had seen this when I had a HP 300e dvd burner and ADS hard drive kit both
connected to the PC and thought it was some conflict. But now I just got a
2.0 Sandisk card reader and it also won't work if the HP burner is plugged
in. So I then unplugged the HP and found the Sandisk and ADS drives also
won't work. If the Sandisk is plugged in second, XP pops up with a USB
device not recognized error, also no leds light up on the Sandisk and they
light up right away if I plug it in first.

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Phil Tomaskovic
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