I have a very puzzling problem with a couple of Dell Latitude C640 Pentium Laptops.
When these two laptops are used over a broadband connection after a few minutes of use the B,N and space keys do not function.
When the machines are used in the office plugged into the LAN or used without a connection the keys work fine.
I have a fleet of around 50 of these machines and only 2 have this problem. One connects using a D-Link DSL-504T router the other a speedtouch DSL modem. They also get the problem using a standard PSTN connection.
I have asked them to plug in an external keyboard and see what happens.
But in the meantime has anyone had simillar issues like this ? or can anyone offer any advice or pointers.