An hour ago or so i plugged a PCI graphics gard on a very ol pc
Since then whenever i touch any component of my pc and the case i feel a fairly good electrical shock. What shall i do? thank you i advance

unplug it from the mains and check the earth.

how do i check the earth?

Does you cable and socket have a '3rd' (often exposed pin)? That's probably the earth.

You'd be better off googling your problem, and find specific information for Greek cabling requirements.

well it worked just fine before i plugged the graphics card shall i try reseting the bios and removing the graphics card? will this help?

i left the computer to rest for the whole night
i unpluged the motherboard power cable . Now i am going to try to boot it again

solved-but have no idea why that happend- i plugged the computer to the wall and the shock was gone- then i plugged it back to the extention cable and the shock came back. I think the extention cable is faulty and this gave me a really hard time to discover. Thanks for the quick replies

Extension lead is not earthed. Significant parts of Asia omit the ground rail so you only have active / neutral at the wall socket even though there may well be 3 points. Ground is just never used.

Having said this, that zapping you get - I get that every day, sometimes several times a day : )

You don't really get used to it, you just shake your head in wonder at how far electricians are willing to cut corners just to save a few bucks.

Can anyone help me? I have an HP Pavilion 32bit running windows 7 ultimate. I installed Meego in error and now Id like to uninstall it or have my computer the way it was. Can anyone tell me how to do so??

I'm having trouble understand how someone can install an entire O/S 'in error'!

Anyway, you just need to re-install windows and when it asks, opt to use the entire disk.

And how is the relevant to electric shocks or Maemo?!