Turning wireless on/off on Dell Inspiron 1545
Laptop wireless went out when my kid hit a bunch of keys.
Running Ubuntu 8.10 on a Dell Inspiron 1545
Wireless button F2 (with the tower icon) did not work as advertised to turn wireless on/off by using Fn-F2 (i.e., holding down Fn key while hitting F2)
Hair tearing ensued;
Ultimate solution: hitting F2 once turns off the wireless connection; but to turn it back on requires holding down the F2 button for a long time, like 30 seconds or a minute
For me, on the 1545, neither the Fn key nor the function key are relevant to turning on/off wireless
Hope this helps somebody.