My macbook pro running OS X 10.8.3 freezes when I plug an adapter into the displayport, even when nothing is connected to the other (vga) end. Anyone know a solution?

My macbook pro running OS X 10.8.3 freezes when I plug an adapter into the displayport, even when nothing is connected to the other (vga) end. Anyone know a solution? I have used this adapter with a macbook air and it works flawlessly, but the moment I plug into the minidisplayport the macbook pro freezes with a little spinning color wheel that goes on and on. . .

Hello there, sarhang27753.
First thing that would come to mind to resolve the issue would be SMC and PRAM resets. I've linked Knowledge Base articles below:
SMC
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/HT3964
PRAM
OS X Mountain Lion: Reset your computer’s PRAM
http://support.apple.com/kb/PH11243
Thanks for reaching out to Apple Support Communities.
Cheers,
Pedro D.

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