Laptop freeze when no pressure

Hi,
I have a strange problem on a M60-CD4 laptop (I know, that laptop model number is strange too!): when I dont push on the casing or the screen, the laptop freeze and if I "repush" on it, it's "unfreezing" at the same place.  No error, no blue screen, only freezing laptop ?!?  Sometimes when I'm lucky, I place the screen in a position that the laptop work no problem but I'm not so lucky!
Any idea ?  Broken motherboard maybe ?!?  Any other idea ?  Is there service manual where I can find the way to open it correctly to view component ?
Thanks a lot!

I am desesperate. The Datasocket - OK version.vi 19 KB that seemed to work so well (no freeze at all) creates a huge memory leakage as you can see in the attached file. I am only reading a tag (local OPC tag, not even remote tag on another PC's OPC server) and the word document attached shows the issue:
After 15-20min during which no increase of memory is noticed (first picture) the situation starts to worsen. In 12 hours (about 7200 read operations) it reaches a consumption of 65Mb ! (to read everytime the same OPC tag). Something that I never noticed with the Datasocket - NOK version.vi 19 KB that had the freezing issue...
I really do not know what to do.
Thanks for your prompt feedback
Christophe
Attachments:
Benchmark Datasokets.vi ‏38 KB
Benchmark Datasocket Memory Consumption.doc ‏392 KB

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