I'm having trouble with my Macbook Pro's trackpad

I have a 2011 Macbook Pro that I got about a month ago. Anyway, everything is running great and fine until 2 days ago. My track pad stopped functioning as properly as it did before. Now when I click on a folder or a track on iTunes, it takes multiple clicks to open the folder or to play the song. I thought something was wrong with my track so I used my own mouse from old computer to use it. It worked but the same problem with the clicking remained. It takes multiple clicks to open a file, a song or a folder. What should I do? Did my computer get a virus or something? Any help would be appreciated.

Shootist007 wrote:
Clifton I must disagree with you on the above statement. It is my opinion and experience that you should never connect the camera directly to any computer, Mac Windows Whatever.
It is always best to Remove the memory card from the camera and put it in a card reader, whether an external reader or one built into the computer, to copy images from the card.
Hi Shootist. I would be interested in hearing some reasoning on this. I almost always use a USB cable to connect my camera to the MBP for transferring pictures, and have moved about 30,000 this way over the last 6 years since my photography went digital. Recently, on the rare occassions when I have only a few to transfer and I was too lazy to go for the cable, I have used the card reader; about half those times I have difficulty getting the MBP to recognise the card. I find I have to press the card very hard into the slot for it to be recognised.
My rationale is quite possibly wrong, but I feel that the USB connectors are more robust and hard-wearing than the flimsy connectors on an SD card. Also, I haven't measured it, but I think the data transfer is faster with the cable. (I just came across this test, which reports noticeably faster transfer for cable than built-in card reader, but the computer was a PC)
Chiara, sorry for hijacking your thread.

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    Shootist007 wrote:
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    It is always best to Remove the memory card from the camera and put it in a card reader, whether an external reader or one built into the computer, to copy images from the card.
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