Gmail Auto Log-out Problem

Three friends of mine are travelling the South Pacific (currently they’re in New Zealand). One of them mentioned to me that he is having trouble accessing gmail from his laptop. I was wondering if anyone has heard about anything like this:

Whenever anyone tries to access their gmail account from our laptop it logs in and then automatically logs out and shuts down that window. I think an add-on has been enabled or disabled to some how to prevent this gmail thing from working.

I think their best bet will be to contact the gmail team and see if they have any suggestions, although my gut tells me it’s a malicious script/virus. What do you think?