Certain keys not working

I've got a problem with my laptop keyboard. When my computer gets warmer (when playing a game or being turned on for a longer time), some of the keys stop working, or work really bad, such as: t, z, caps lock, backspace, left shift, F3 and F7. But when the computer is cold, they keys work just fine.
I've got Lenovo 3000 N200, 0769 BJG.
Anyone has a similar problem and solution for it, it would be much appreciated, thanks. (a response from Lenovo forum mod or admin would be great)

Ziro wrote:
Customer support that's going on here is fascinating.......2 days, no reply.....
Yes, some Lenovo employees do read and post to this forum. Mark is quite active, and several others post as well. In addition, there are lurkers who just read without making public comments although sometimes they ask the mod team to either gather more information or pass along advice.
Well, it's not a customer support forum - it's a user-to-user forum. Here are the expectations of Lenovo's participation from the Welcome message:
These communities have been created to provide a high quality atmosphere in which users of Lenovo products and services may share experiences and expertise. While members from Lenovo may participate at intervals to engage in the discussions and offer advice and suggestions, this forum is not designed as a dedicated and staffed support channel.
The bottom line is there's no guarantee that you will get an answer to a question here directly from Lenovo.
Also, this is a major holiday weekend during the height of summer vacation season in the US. Not much chance even the Lenovo employees who just hang out here for fun will be around.
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Jane
2015 X1 Carbon, ThinkPad Slate, T410s, X301, X200 Tablet, T60p, HP TouchPad, iPad Air 2, iPhone 5S, IdeaTab A2107A, Yoga Tablet, Yoga 3 Pro
I am not a Lenovo Employee.
I AM one of those crazy ThinkPad zealots!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!

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Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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