Hi Chris, That is correct, the mouse requires more power than the Printer & SanDisk. I’m not sure which MBP you have, you would need to supply more details, 15” or 17” & the Model Identifier: MacBookPro8,2 or what?
But you can look in System Profiler under Hardware - USB To find System Profiler go to the Apple Logo (top left) > About This Mac - click 'More Info’, then under Hardware > USB it will list your MBP’s USB Tree. There you will see what each USB port is handling. Cheers, Ronni On 17/10/2011, at 2:05 PM, Chris Burton wrote: > Hi Ronni > > The Mouse works on the forward USB port and Not on the rear one, closet to > the Thunderbolt port. The other devices work on the rear port. I had no idea > they were both different. Perhaps what James has described is what is > happening: this mouse may require more power? > > Im glad it works on one of the ports! > > Many thanks > > Chris > > > On 17/10/2011, at 1:15 PM, Ronda Brown wrote: > >> >> On 17/10/2011, at 11:56 AM, Chris Burton wrote: >> >>> Good morning Muggers >>> >>> I have just realised that one of my USB ports is now not working with my MS >>> Mouse!! Just stopped working!? I have also checked the port with two other >>> devices: >>> >>> 1. an Epson CX7300 inkjet, and it worked as per usual. >>> 2. a SanDisk multi card reader with CF card; >>> >>> and both of the above worked. >>> >>> I then plugged the mouse in, and no go!! It works perfectly on the other >>> usb port. I have never noticed this before, probably as I havnt changed the >>> port for my mouse! >>> >>> Is this normal, or is there something a-miss in my Laptop (10.6.8 2.2Ghz >>> Dual i7) and/or mouse? >>> >>> Is there any way of me checking/testing both the USB ports with software or >>> other? >> >> Hi Chris, >> >> Which USB Port does the MS Mouse NOT work in? >> Is it the First USB Port … that is the nearest to the front of the MacBook >> Pro (the nearest to you when using the MBP)? >> >> All the USB Ports on the MBP are NOT equal. >> >> Try the Rear USB Port, the USB Port closest to the screen. Does the MS Mouse >> work then? >> >> Cheers, >> Ronni >> >> 17" MacBook Pro 2.3GHz Quad-Core i7 “Thunderbolt" >> 2.3GHz / 8GB / 750GB @ 7200rpm HD >> >> OS X 10.6.8 Snow Leopard >> OS X 10.7 Lion >> Windows 7 Ultimate (under sufferance) >> >> -- The WA Macintosh User Group Mailing List -- Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> Settings & Unsubscribe - <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>