Mostly:

o Are there any other programs running at the same time?

o Do you auto-launch LW at startup or start it manually from a desktop icon or Programs menu?

o Is this a "new" problem (it used to work fine until recently) or is this a fresh install?

And of course, the regular info of OS, free-space on the C: drive (*and* the drive LW is installed on if not C:, etc).