Just keep pressing back until it prompts you to exit. Or, if you're using a browser, press the menu button and exit.
Not sure what it is. sorry can't help you
The only way is to perform a factory reset. I'm sorry. You should create a new account and use it just for the eee pad.
Class 8 is the highest . Class 4 or 6 should be enough.

class 10 is fastest now if i am not wrong. I am using Kingmax brand. So far ok. Just check LYN for good bargains..

Hi i just bought my htc wildfire from times square. Ap set. and i need help cause im very new to android.

firstly its running on 2.2 froyo bt i guess its the arab version
i think this AP is Arab set because my language selection only have english(arab), english(UAE). no normal english
another thing my qwerty i can switch between arab and abc(roman) characters.
Is there anyway i can change this???
Secondly i had an appstore app installed bt as i did a factory reset i lost it.
Now im trying to download apps from market.android.com with my Google account using my phone bt it says your account is not associated with any android.
Pleaseee help

thirdly can i get a list of recommended apps for my phone because currently i have only installed papago.  and can i know is it necessary to root my phone???
Thanks alot people.       
                                  

There's a limit to the phone's read/write speed to the SD card itself. Do check the limitation of the phone first before investing in that class 10. In most devices it is unnecessary to get Class 10.

A lot of the time (in fact, most of the time) the so called speed can be increased by simply modifying the read cache value in ROMs.

http://forum.xda-developers.com/showthread.php?t=1010807

Here's an app to go with it:
https://market.android.com/details?id=com.sdincrease.it

Do not proceed without understanding what you're doing.

^no harm in getting class 10, just saying it's redundant. It's like getting a ferrari to drive in the city. Fancy, but redundant. I'm using class 4 ok only. Don't see how a class 10 would do any good.

The link i showed you was akin to taking the speed limit and traffic away.

not interchangable...

using samsung charger into huawei phone... wont charge due to not enough power (0.7A compared to the need of 1.0A)
vice versa.... might break/rosak/kaput ur samsung battery if use huawei charger (too much ampere)

my 1 sen
note: power can be equal to watt

watt(W) = volt(V) X ampere (Amp)
samsung need 3.5W to charge
huawei need 5.0W to charge

Never defrag flash based storage.
1. Mechanical drives' head need to seek back and forth if files are fragmented causing unnecessary wear. Flash access are digital with no such problem and runs several magnitudes faster.
2. De-fragmenting flash causes unnecessary data movement (reads and writes) causing more harm by wearing out flash faster.
3. Flash based storage employs various different algorithms to store data due to flash fundamental behaviour which I'll not explain here, but in a nutshell, OS sees a virtual mapping of the data, not the physical one, thus have no way of knowing how to best manage the data in flash.