Keyboard Error in MS-DOS

Hi all
I have been given a "Dell Latitude XPi CD 150ST" laptop, ok it's not the fastest thing on the planet these days but i got it for nothing and it works great except for the following error.

In "MS-DOS Prompt" when i want to type the backslash (\) i get a hash (#) instead. If i hold the "Shift" key i get a ~ sign.

I had the keyboard set to "English (British)" which correct for me, but a friend said to change it to "English (United States)" but it still does the same thing.

It works ok when you are in MS Office Word or Notepad, but in dos or the ms-dos prompt i cannot get the \ sign which is one of the thing i need most.

I have tried using the hash (#) instead but i get a 3 or the £ sign holding "Shift" key.

 

I also tried turning the "Num Lock" off but it still does the same thing.

 

I have just found out something, when i connect a external keyboard to the PS2 Mouse/Keyboard connection at the rear everything works ok and i get both  \  / keys in MS-DOS too. it's only happens when i use the laptop keys.

it's running Win98SE and works well except for this problem.

 

I guy in another forum said to download the keyboard drivers from Dell, what do you think and if so from where as i don't have a Dell Support ID or whatever you call it.

 

thanks