I am using a Dell Inspiron 9300, running WinXP Home edition, when I connect to just a specific WIFI Internet Modem via WPA protocol, that has connection to another two pc's via ethernet cable, and if the other pc's are on, I start having issues with the touchpad or external wireless mouse, the pointer sometimes stops moving, it looks like it doesn't work at all for a few seconds and later on it reacts.
I am sure it is not a hardware issue, as I already issolated the problem to the conditions described above, and Don77 helped me out to discard a malware in the corresponding forum.
I have no clue what the problem is, could you please help me out.
Thanks,