I had a Pro4 that had a flickering problem then I upgraded to a Pro7. It has its downsides but I travel a lot so I bought this little device. I charged about 40 minutes on the go while driving and my computer got very hot and I didn't realize it was due to glare, it was that it started flickering. I don't know if it was the heat generated by the charging port, but my PRO7 flickered for about 2 hours afterwards and part of the screen fogged up. Now note that the description doesn't list a use for the pro7, but the accessories are essentially the same for both machines.
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