Can't mount Android phone; Why not? {or, How to uninstall Mark/Space software?}

Question

Ladies and Gents...
There's a Heritic in the building... 
I'm a loyal T-Mobile customer, and I finally gave up on waiting for the iPhone.
So, I'm moving from my LEMON of a BlackBerry 8900 over to an Android phone:  A Samsung Galaxy S II.
But, I'm having trouble mounting it via USB cable to ONE of our TWO Mac Minis.
It would seem that SOMETHING is wrong about the second one, but I sure can't figure out what to uninstall, reinstall, etc.
Here follows my description of the two computers.
{A description of what happens can be seen "down-page".}
=====
This is the description of my wife's Mac Mini.
I'll call it the FIRST computer because things DO happen correctly on this machine.
Hardware Overview:
  Model Name:    Mac mini
  Model Identifier:    Macmini1,1
  Processor Name:    Intel Core Duo
  Processor Speed:    1.66 GHz
  Number Of Processors:    1
  Total Number Of Cores:    2
  L2 Cache:    2 MB
  Memory:    2 GB
  Bus Speed:    667 MHz
  Boot ROM Version:    MM11.0055.B08
  SMC Version (system):    1.3f4
  Serial Number (system):    YM6090xxxxx
  Hardware UUID:    00000000-0000-1000-8000-00xxxxxxxxxx
System Software Overview:
  System Version:    Mac OS X 10.6.8 (10K549)
  Kernel Version:    Darwin 10.8.0
=====
Here's my own computer.
I'll call it the "Second" one, as it's the one that does NOT connect to the SGS2.
Hardware Overview:
  Model Name:    Mac mini
  Model Identifier:    Macmini2,1
  Processor Name:    Intel Core 2 Duo
  Processor Speed:    2 GHz
  Number Of Processors:    1
  Total Number Of Cores:    2
  L2 Cache:    4 MB
  Memory:    4 GB
  Bus Speed:    667 MHz
  Boot ROM Version:    MM21.009A.B00
  SMC Version (system):    1.19f0
  Serial Number (system):    YM7291xxxxx
  Hardware UUID:    00000000-0000-1000-8000-00xxxxxxxxxx
System Software Overview:
  System Version:    Mac OS X 10.6.8 (10K549)
  Kernel Version:    Darwin 10.8.0
=====
When I'm seated in front of my wife's Mac Mini,
I select on the Android (Samsung Galaxy S II) the following:
Settings > Wireless and Network > USB utilities.
On the window that then appears, it states:
   USB mass storage
   Tap the button below to copy files between the computer and SD card.
   [Connect storate to PC]
Note that at this point the micro USB cable has NOT yet been connected.
I click the button, and this dialog box pops up:
   USB utilities
   Connect USB cable to use mass storage.
   [Cancel]
I connect the cable, (and I do not press the button)...
The tan or "baby-puke green" Android symbol pops up on the top third of the screen, with a USB symbol in the place of its upraised left hand.
Beneath that is this text:
   USB connected
   You have connected your phone to your computer via USB.  Select the button below if you want to copy files between your computer and your android's USB storage
   [Connect USB storage]
Please note:  The above DOES appear on our first Mac Mini (my wife's).
However, it only briefly FLASHES on the screen when connected to (my own) second Mac Mini.
I press the [Connect USB storage] button...
I get this dialog box:
   Connect USB storage
   Connecting USB storage will stop some applications in use.  They may not be available until you disconnect USB storage.
   [ OK ]  [ Cancel ]
I click on OK.
The clockwise spinning circle briefly appears in the bottom of the screen, then my phone and micro SD card appear in the "DEVICES" section of an open Finder window of our 1st Mac Mini.  I can transfer files back and forth on our first Mac Mini.
Remaining on the screen of the Android (SGS2) is the green android and this message:
   USB storage in use
   Before turning off USB storage, make sure you have unmounted ("ejected") your Android's USB storage from your computer.
   [Disconnect storage from PC]
As indicated earlier, I can transfer files.  Instead, I now click the "eject" icon for both the microSD card and the phone, then click on the above "[Disconnect storage from PC] button.  All is copacetic on this Mac.
NOW...    Moving over to MY Mac Mini...
I repeat the above steps, but when prompted to attach the cable, the baby-puke green android briefly flashes on the screen, then a screen wipe takes him away and reverts to the following message:
   USB mass storage
   Tap the button below to copy files between the computer and SD card.
   [Connect storage to PC]
nuts.
I've been doing this over and over and over again, there is just no getting around this.  There is SOMETHING about my own Mac Mini that's causing a problem with mounting the Android phone.
The only plausible expanation that I can think of is:
Before R.I.M. released the Macintosh version of their "Blackberry Desktop Manager" application software, I had to purchase a compeditor's product and install it.
{I'm sorry to say that I can not be certain of what the product was called;
I _reasonably_sure_ that it was "Missing Sync for Blackberry" by "Mark/Space".
A distant second possibility is "PocketMac for the Blackberry", but I can NOT be absolutely certain of either item.}
To this day, I am not convinced that the first sync software I used was sucessfully or correctly UNinstalled.
Does anyone have any ideas?
What do I need to locate/fix/remove, and how, etcetera?
=====
p.s.:  It occurs to me that this is first and second a question of:
- How, so long after the fact, do I delete all the old files that were associated with the "Mark/Space" software,
and
- Is the presence of the "Blackberry Desktop Manager" software on a Mac Mini's OS X 10.6.8 system going to create problems syncing to an Android?

Answer 1

Safe Mode (booting while holding down Shift key) should have disabled all the Login items, as well as any non-Apple startup items, including the launchd items.
I'm out of "Easy" ideas, and anything I say after this, is just wild ideas, so feel free to ignore me.
Have you tried different USB cables?  Maybe there is an issue with the USB connector, or the way you have to bend things to access your Mac mini USB ports is different from accessing your Wife's Mac mini USB ports?
Try alternate USB ports.  Maybe there is a bad/marginal port/connector.
Try removing all your existing USB devices.  If you are using a USB keyboard and/or mouse, try using a different USB keyboard and/or mouse (maybe borrow them from your Wife's Mac mini).  Basically remove all other USB devices and replace the essential keyboard and mouse with known good ones).
Desperate measure (Backup first before proceeding down this path).  Using a Firewire cable, boot your Wife's Mac mini into Firewire Target Mode.  Connect a Firewire cable between your Mac mini and your Wife's while your Wife's is in Target Mode.  Now boot your Mac mini holding down the "Option" key, and select your Wife's Mac mini's disk to boot from.   Essentially you will be using your hardware and your Wife's software to see if you have a hardware issue, or if it is a software issue.  That is to say if it works with your Mac mini booted from your Wife's boot disk, then your hardware is fine, but there is something wrong with your software.  If it does not work, then it is your hardware.
Hopefully, you Wife will not kill you for even mentioning this.  ALSO, if you do try this, BACKUP, BACKUP, BACKUP first, especailly her system.  Not that anything will go wrong, but if it does, the last thing you want is an annoyed Wife :-)  BACKUP!