Now I am going to order an PS/2 from the internet. Unfortunately, for the next 4 days I won't have access to the computer, but until then, I am open for ideas.
Once I get access to the computer, I'll try using that file from Windows XP and I'll share the results, but as I said, until then, I am open also for another ideas.
Before actually trying that file, I may try the update that you recommended to see if it actually changes something.