MacPro won't remain asleep if Mail is open

I've been having a problem with my Mac Pro refusing to stay asleep for a couple of weeks now. After a ton of probing without finding the cause, I've finally isolated it to Mail. If the Mail app is open, my sleeping Mac will awaken on its own with no input from me. There is nothing else set which might wake the mac, period. I tried re-naming my Mail folder, trashing the com.apple.mail.plist, re-setting up Mail again, and replacing the contents of my new Mail folder with those from the old one. It still won't stay asleep if Mail is running.
Also, I thought it odd that when setting up the new Mail account's incoming and outgoing mail servers (which I had established as incoming.verizon.net and outgoing.verizon.net on the original Mail account) that I saw them again as available choices in the setup dialog only now they were incoming.yahoo.verizon.net and outgoing.yahoo.verizon.net . ???
Anyway, I would surely appreciate any thoughts on what might be causing this and how to eliminate the problem.

Found my own answer. Mail was not the cause. I installed an APC Smart-UPS and when connected according to instructions - including the USB cord - it wakes my Mac several times per hour. I'm guessing any of the included line conditioning actions performed by the UPS are noticed as USB "events" and are triggering the wakeups. I consider this an Apple OS bug since I'm using Apple's UPS monitoring software built in to Leopard. If I disconnect the USB plug the problem is solved. The Smart-UPS becomes a "dumb UPS" but should still protect from sudden power outages. Perhaps I could try the APC PowerChute software but I've read negative reviews- especially on the Mac platform - for this software. Take note, Apple bug squashers...

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HI,
The Apple IDs from @mac.com and @me.com (Older MobileMe and more recent iCloud Names) are also Valid AIM Screen names.
Any other sort of Apple ID is not a Valid AIM Name.
A Google ID that is associated with Google Mail Account (And has "Talk" enable on your Google Settings) can be used in iChat as Jabber Name/ID. (Google Run Jabber server).
Jabber and AIM are different IM Services and it is not easy or straight forward to add Buddies from one Service to the Buddy List of another. (As A Starting point consider it "impossible")
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Valid AIM Screen Names in Table (pic)
7:46 PM Monday; December 5, 2011
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
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 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
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Sorry, this is detailed, but I figured I had to explain everything I've done so far and the issues I've had. Thanks much!
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I tried to boot into Safe Mode, but this also didn't work. The same result.
I then decided I'd do a clean install from the Install DVD and overwrite my boot drive (everything is saved onto a RAID Array). However, I couldn't load the OS installer.
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This is a MacPro 3,1.
24 GB RAM (8GB installed by vendor, 16 GB recently installed by me)
Bay 1 - Unformatted new HDD
Bay 2 - Slice 1 of RAID Array
Bay 3 - Slice 2 of RAID Array
Bay 4 - Formatted HDD for Storage
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4MEM/62/40000005: 0x79600ff18
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4MEM/60/40000005: 0x79650d18
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So I rebooted, and then tried to login when holding down the option key. It came up with the option to load the Install DVD. I said yes, and of course, same result as before.
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Mac OS X HDD (my Lion install)
Windows 7
Recovery HD
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You can also use chkdsk or WD Lifeguard to certify all the disk sectors are mapped out if they need be.
8800GT: you have heard of the 10 minutes in over for 350*?
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2x2GB FBDIMM DDR2 667MHz
http://www.amazon.com/BUFFERED-PC2-5300-FB-DIMM-APPLE-Memory/dp/B002ORUUAC/
Lion Recovery Disk Repair? you did or didn't?
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And of course reset the SMC - hitting power button 10 seconds while unplugged (and no devices or cables connected).

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Hello,
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Many thanks and greetings from southern France.
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Web Mail - How do I clear my browser's cache?
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tsunami,
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Message was edited by: Bob Gold
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MacPro won't remain asleep if Mail is open

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