Buffalo, my first suggestion is to please remain calm.

There is plenty of information to be found here at the maemo.org website, but it may take some digging to find exactly what you want.

The first impulse that people here will have is that they will want to fix the underlying problem on your tablet; after all, these devices are very open, and so it is very easy (at least for those with a little experience) to find the root cause of the problem and deal with it.

However, you can also find information here on how to reset your device to factory settings. In particular, this wiki has a great deal of info on how to do it:

http://wiki.maemo.org/Updating_the_firmware

However, please note that Nokia no longer supports these internet tablets. Therefore, it takes even more digging to find the appropriate files to flash. (I'm not entirely certain myself where the best place is to find them right now.)

In any case, please stop spamming the forum with dozens of messages...