General ⇒ beginner in LaTeX - general questions

[solanumlycopersicum]

Hi!

I'm a beginner in LaTeX and already encountered some problems. Every help is welcome!
Some questions:
* Why can I not overwrite my tex.files when I want to save them again. I have a texfile and named it sample, I change something and want to save again but my editor (winshell) wants me to rename the file first, so I can never overwrite the previous file.
* When I wanted to write a small document into pdf the editor gave me 0 errors but it did not write a .pdf file but only a text document. This only happens to some documents, what is going wrong?
* Is it only imagination or do I have to start each phrase on the next line in the editor? If I don't do that I receive a warning "overfull boxes", why is that?

If somebody could answer this questions you'ld make me very happy!

regards,
solanum

[localghost]

[…] * Why can I not overwrite my tex.files when I want to save them again. I have a texfile and named it sample, I change something and want to save again but my editor (winshell) wants me to rename the file first, so I can never overwrite the previous file. […]

That seems more to be systematical problem. Perhaps something in the settings of WinShell. Check that.

[…] * When I wanted to write a small document into pdf the editor gave me 0 errors but it did not write a .pdf file but only a text document. This only happens to some documents, what is going wrong? […]

Build a minimal working example (MWE) and add the \listfiles command as very first line. Post the complete log file of this MWE here as attachment.

[…] * Is it only imagination or do I have to start each phrase on the next line in the editor? If I don't do that I receive a warning "overfull boxes", why is that? […]

This can happen if there is no hyphenation rule for a word. A MWE is also helpful here.


Best regards
Thorsten