Hi everyone!

I have a problem with my wireless connection. Here is the description:

when i start the computer everything is perfect and ubuntu 7.10 strast quickly and the wireless connection works perfect. but when I'm doing some other things and not using the computer (the comp turns off the screen, HDD is runing) the wireless connection is not working but the light on the wireless button is still blue (that means it is connected).

I knoe that there is not anything wrong with the router because I can stay online with other computer (IBM ThinkPad, windows OS) till the battery is dead!

Pleas any help would appriciate!
ANPU

(sorry for mistakes in english)