I also am having problems with LW quitting on me. I "upgraded" to the 4.9.9 beta, but had some problems, so I thought I'd "downgrade" to 4.8.1, but it told me that I cannot install the software to that volume (null). Not sure what that meant, I deleted the LW folder, as well as the preferences in the Library. It still told me that it could not install 4.8.1, so I went back to the beta...but now it crashes after freezing up while loading the HTML Engine. Any suggestions would be great.

Oh..also, I have repaired permissions, etc...no luck there.