Bo Peng wrote:
1. uninstall 0.5.0. I notice that miktex and aspell are still there and I removed them through add/remove program.
This wasn't necessary.
Question: If lyx installs miktex/aspell, should it be responsible for removing them? I think an option during uninstall should suffice.
Concerning aspell you are right. The problem is here the dictionaries that a user might have installed later, but I think I have now a solution for this. MiKTeX and GSview are installed using their own installer so that I thaught it is OK when the user deinstalls them using the original uninstaller. But the next version of my (un)installer will ask you if you also want to uninstall MiKTeX and GSview when they were installed together with LyX.
2. download 0.5.1, use all default settings, even for miktex. During configuration, I am not asked to install additional packages. This is different from yesterday. I guess miktex is not fully uninstalled!
No this is the case because you use a fresh MiKTeX istallation and have admin permissions. It's too complicated to explain this :-), MiKTeX is sometimes a bit unintuitive.
Question: Will there be compatibility problem with the embedded aspell and the online dictionary (may have newer version)?
What do you mean with "online dictionary"? I only install the spellchecker program. The webpage you are guided to while the installation is for the dictionaries.
Problem: when I compile a beamer file, and pgf is not there, miktex does not fetch the package automatically (The option is on). I think this is still related to the uninstall problem of miktex.
No, MiKTeX is indeed not fully uninstalled when you are using its uninstaller. But there are only some registry entries left. I reported these problems to the MiKTeX-developer and he surely will fix this for the next MiKTeX-version. But anyway, as I wrote you in previous emails, you need to syncronize MiKTeX's package list with a MiKTeX-mirror on the web before MiKTeX can fetch missing packages automatically.
regards Uwe
