There are some reasons why a cop would not use both lights and sirens. Sometimes it is best for them to only use one of their two ways of alerting others.
The only thing I could think of quickly is if they were responding to a crie in progress, such as a burglary or break in, where it may be beneficial to approach with as few things as possible giving you away early. In the situations I listed, an officer may be best to use only the lights for intersections only; I can't think of any reason to use siren only. Different types of calls need different responses.
I agree though, without lights and/or sirens, there should be reasons given for some actions.
I found this book helpful: Linux Desktop Pocket Guide It covers Ubuntu, Fedora Core, Gentoo, SuSe, and Madriva. It should have enough information to get what you need done.
Some people are used to Internet Explorer and its behavior. They can't get used to Firefox or similar browsers. I have tried to teach a few people to use Firefox, but they need the same lesson every time they sit down in front of it.
Most of the alternate browsers have tabs, which seems to be the main cause for confusion that I have seen. Are there any alternate browsers that by default don't use tabs? I know you can get similar behavior with Firefox and probably others, but it is annoying to change preferences for just 10 minutes.
We could try to give more in depth lessons on alternate browsers, and their benefits. Also, an index card with any differences from IE may prevent repeated lessons.
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There are some reasons why a cop would not use both lights and sirens. Sometimes it is best for them to only use one of their two ways of alerting others.
The only thing I could think of quickly is if they were responding to a crie in progress, such as a burglary or break in, where it may be beneficial to approach with as few things as possible giving you away early. In the situations I listed, an officer may be best to use only the lights for intersections only; I can't think of any reason to use siren only. Different types of calls need different responses.
I agree though, without lights and/or sirens, there should be reasons given for some actions.
I found this book helpful: Linux Desktop Pocket Guide
It covers Ubuntu, Fedora Core, Gentoo, SuSe, and Madriva. It should have enough information to get what you need done.
Have you tried searching the Ubuntu forums?
I'm using the same version number and no updates are showing up at Microsoft Update. It shows the Secunia page with the google.com address for me.
Some people are used to Internet Explorer and its behavior. They can't get used to Firefox or similar browsers. I have tried to teach a few people to use Firefox, but they need the same lesson every time they sit down in front of it. Most of the alternate browsers have tabs, which seems to be the main cause for confusion that I have seen. Are there any alternate browsers that by default don't use tabs? I know you can get similar behavior with Firefox and probably others, but it is annoying to change preferences for just 10 minutes. We could try to give more in depth lessons on alternate browsers, and their benefits. Also, an index card with any differences from IE may prevent repeated lessons.