Model 1 power issues

[rossi46]

I don't know if this has already been posted/queried, but I'm using this aids-infested Vodafone Mobile broadband and it only gets a 50k(!) GPRS signal where I am, so I can't use the search function to check - BUT I have a problem with my Model 1 Saturn. It plays fine for a couple of minutes then simply powers-off. I've cleaned the internals and stuff and changed the leads, but it still does it. My rubbish connection takes way too long to search google and stuff, so I was hoping for a quick fix/solution here, if anyone would be so kind

Cheers

Paul