ALT Startup will not work any longer, PRAM reset will not work any longer.

Hi folks,
I just bought and plugged in my Mac Pro to a new Belkin battery back up unit yesterday, and now when I try to restart using the ALT key it will not work, it starts up to my default drive only. When I try to reset the PRAM, using the option-command P-R keys it also boots to the default drive.
Any suggestions would be appreciated.
Jim

Troubleshooting is sortof voodoo, if you do "a" and get response "b" then don't do it!
There have been other problems, USB hub, cable, etc.
OS X doesn't "need" PowerChute which also hasn't been updated in two years and can cause problems. APC works. APC's software for Windows is excellent though. Shame.
As for why... I'll leave that for philosophy class.
Wired keyboard? check. 1000VA or above? check. Any UPS also can have a strong EMF field around it that I guess could affect other electronics (cell phones etc and AC adapters have been known to cause problems and RFI).

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my preference and economy of standard, is to have wired USB and also use powered
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ALT Startup will not work any longer, PRAM reset will not work any longer.

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