One USB port isn't working...

Hey,
I just realised that one of my USB ports isn't working when I plugged in my mouse... Should I be very concerned about this?
I live in a really remote community (ie no stores anywhere closer than a 3 hour plane ride away) and can't bear the thought of living without a computer for several weeks if I send it to Apple to be repaired.
Could it be a sign that there's something else going on? Is is expensive to fix?
Thanks!!

Welcome to the Apple discussions.
When one USB port isn't working, often a Power Management Unit (PMU) reset will fix it. Follow these directions: http://docs.info.apple.com/article.html?artnum=14449

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  • Random Errors fix one another pops up - One USB port won't install device's drivers

    I am trying to get this computer to work and every time I fix something another issue shows up. It is like a sinking boat in a carton. First it was slow and just acting up. After a few tweaks I got RestoreHealth to run and fix the issue. No SFC isn't reporting
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    One think I am wondering is about a line in the CBS.log. I really wish I could find a resource to learn more about how to read the logs. I know how to read some but there are things I just don't get, yet. A link to an article(s) about CBS logs
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    Log Name:      System
    Source:        Microsoft-Windows-DistributedCOM
    Date:          7/16/2014 1:12:13 AM
    Event ID:      10016
    Task Category: None
    Level:         Error
    Keywords:      Classic
    Description:
    The application-specific permission settings do not grant Local Launch permission for the COM Server application with CLSID 
    {7022A3B3-D004-4F52-AF11-E9E987FEE25F}
     and APPID 
    {ADA41B3C-C6FD-4A08-8CC1-D6EFDE67BE7D}
     to the user personsPC\personsname SID (S-1-5-21-2541327983-389364735-1342229692-1001) from address LocalHost (Using LRPC) running in the application container Unavailable SID (Unavailable). This security permission can be modified using the Component
    Services administrative tool.
    Event Xml:
    < Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
      <System>
        <Provider Name="Microsoft-Windows-DistributedCOM" Guid="{1B562E86-B7AA-4131-BADC-B6F3A001407E}" EventSourceName="DCOM" />
        <EventID Qualifiers="0">10016</EventID>
        <Version>0</Version>
        <Level>2</Level>
        <Task>0</Task>
        <Opcode>0</Opcode>
        <Keywords>0x8080000000000000</Keywords>
        <TimeCreated SystemTime="2014-07-16T05:12:13.613459900Z" />
        <EventRecordID>39143</EventRecordID>
        <Correlation />
        <Execution ProcessID="880" ThreadID="932" />
        <Channel>System</Channel>
        <Computer>PersonsPC</Computer>
        <Security UserID="S-1-5-21-2541327983-389364735-1342229692-1001" />
      </System>
      <EventData>
        <Data Name="param1">application-specific</Data>
        <Data Name="param2">Local</Data>
        <Data Name="param3">Launch</Data>
        <Data Name="param4">{7022A3B3-D004-4F52-AF11-E9E987FEE25F}</Data>
        <Data Name="param5">{ADA41B3C-C6FD-4A08-8CC1-D6EFDE67BE7D}</Data>
        <Data Name="param6">PersonsPC</Data>
        <Data Name="param7">PersonsName</Data>
        <Data Name="param8">S-1-5-21-2541327983-389364735-1342229692-1001</Data>
        <Data Name="param9">LocalHost (Using LRPC)</Data>
        <Data Name="param10">Unavailable</Data>
        <Data Name="param11">Unavailable</Data>
      </EventData>
    < /Event>
    Thanks in advance. Never asked a question here so hope this is enough info and in the right place

    Log Name:      System
    Source:        Microsoft-Windows-DistributedCOM
    Date:          7/16/2014 1:12:13 AM
    Event ID:      10016
    Task Category: None
    Level:         Error
    Keywords:      Classic
    Description:
    The application-specific permission settings do not grant Local Launch permission for the COM Server application with CLSID 
    {7022A3B3-D004-4F52-AF11-E9E987FEE25F}
     and APPID 
    {ADA41B3C-C6FD-4A08-8CC1-D6EFDE67BE7D}
     to the user personsPC\personsname SID (S-1-5-21-2541327983-389364735-1342229692-1001) from address LocalHost (Using LRPC) running in the application container Unavailable SID (Unavailable). This security permission can be modified using the Component
    Services administrative tool.
    Event Xml:
    < Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
      <System>
        <Provider Name="Microsoft-Windows-DistributedCOM" Guid="{1B562E86-B7AA-4131-BADC-B6F3A001407E}" EventSourceName="DCOM" />
        <EventID Qualifiers="0">10016</EventID>
        <Version>0</Version>
        <Level>2</Level>
        <Task>0</Task>
        <Opcode>0</Opcode>
        <Keywords>0x8080000000000000</Keywords>
        <TimeCreated SystemTime="2014-07-16T05:12:13.613459900Z" />
        <EventRecordID>39143</EventRecordID>
        <Correlation />
        <Execution ProcessID="880" ThreadID="932" />
        <Channel>System</Channel>
        <Computer>PersonsPC</Computer>
        <Security UserID="S-1-5-21-2541327983-389364735-1342229692-1001" />
      </System>
      <EventData>
        <Data Name="param1">application-specific</Data>
        <Data Name="param2">Local</Data>
        <Data Name="param3">Launch</Data>
        <Data Name="param4">{7022A3B3-D004-4F52-AF11-E9E987FEE25F}</Data>
        <Data Name="param5">{ADA41B3C-C6FD-4A08-8CC1-D6EFDE67BE7D}</Data>
        <Data Name="param6">PersonsPC</Data>
        <Data Name="param7">PersonsName</Data>
        <Data Name="param8">S-1-5-21-2541327983-389364735-1342229692-1001</Data>
        <Data Name="param9">LocalHost (Using LRPC)</Data>
        <Data Name="param10">Unavailable</Data>
        <Data Name="param11">Unavailable</Data>
      </EventData>
    < /Event>
    By the way, here is the related information about this event:
    Event ID 10016 — COM Security Policy Configuration
    http://technet.microsoft.com/en-us/library/cc726313(v=ws.10).aspx
    For your question about which package create the recorder in CBS, you can try Robert's suggestions.
    Here is a blog for you to know more about CBS:
    Understanding Component-Based Servicing
    http://blogs.technet.com/b/askperf/archive/2008/04/23/understanding-component-based-servicing.aspx
    Kate Li
    TechNet Community Support

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    I noticed that one USB port(All other ports appear to be working)in the back of my Mac Pro does not work.
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    Hey there!
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