USB devices disapear and only reappear after a full power down

Hi All
Has anyone seen this before, The USB devices (Mouse/Kboard/ilok) started to be flaky and then disappeared. After a soft restart the Mouse and keyboard came back but not the Ilok. After a hard reset eg pulling power for 30sec everything has come back. Is this a sign of things to come, power supply issues etc?
Thank you
Mal

In some cases, the keyboard plus mouse is right at the edge of acceptable power draw, and adding anything to the second keyboard outlet causes it to malfunction or over-power and drop out.
The Mac Pro has separate power budgets for the front ports in total and the back ports in total, so one approach might be to plug in the other stuff on the other side.

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Reboot to see the system in it's default state.
Open TextEdit for the sake of it
Open Activity Monitor & Terminal from /Applications/Utilities.
Select the Memory tab
In Terminal enter the following command
memory_pressure -l critical
# note that is a lowercase L
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When USP charging cable is connected to both the live wall charger and iphone,
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When the USB cable is not connected the following:
1. Hold down power button until "Slide to power off appears".
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Problem:
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Resolution:
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*Getting the driver:*
*Option 1 :*
http://ptcl.com.pk/contentb.php?NID=327#drivers
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*Config Settings:*
phone number: #777
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Password: ptcl
*Do not change any other settings.*
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Please note I am not from PTCL or any affiliation with them. Check my website for more details…
+*H A P P Y - S U R F I N G*+

Hey Mark
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USB devices disapear and only reappear after a full power down

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