hey guys I was just wondering does anyone else have this same problem:

I have two phones the nokia n900 and my work phone blackberry 8700 (oldy), when out and about they work fine but when I get onto a train aka the underground they both loose signal (duh), but when I resurface say at an outside part of the line the blackberry instantly gets signal and works fine but the nokia just takes forever!

When I exit the subway to it takes at least 3 mins for the nokia to even get one bar its madness! has anyone else had this trouble or does anyone know of a antenna booster I can use on the phone?

oh and both phones are on the same network.

Thanks guys

What happens if you disable, then re-enable, the GSM radio?

My N900 makes connection to the GSM and/or GPRS network within half a minute when I enter the outside world from my work hide-out (i.e. cold-war style bunker).

Disable the antenna eh? hmmm how would I go about doing that??

Not the antenna, but actually turn the cellular radio off. There is an application to turn the radio off and on by adding a button to the menu when the power button is pressed momentarily. It is announced in this thread: http://talk.maemo.org/showthread.php?t=37940