Interferences by my PC???????

Already in the business of asking for help to learn...

It is possible (and normal) that my desktop PC interferes with other RF gadgets?

Actually I can't use a particular mobile phone close to my PC (a SAGEM 401V) but not problem with any other mobiles. I can not receive calls or sms or send them. As soon as I move the mobile away, say 2 yards, works perfectly.

Also any laptop close to my PC works erratically (the touch pad doesn't work at all) and gets very slow and some applications doesn't work at all. In the other hand, in the desktop PC also a lot of things go "wild". But, again, moving the laptops a couple of yards away all work without problems.

I knew that some mobiles can not be used near any RF source and that SAGEM had problems in the past with some models but I didn't hear anything about the 401V.

What can provoke an interference in a PC?

Tino.