Mail locks up when trying to make attachment

Question

I'm having a problem with Mail . . Whenever I click the Attachment button to make an attachment, the application locks up . . Any clue?? This has never happened before, and I've had this computer for nearly 3 years now . .

Answer 1

In the few cases where someone has reported this problem, the users that experienced it didn't provide enough information to properly identify it, so we still don't know what the cause really is.
This could be a Launch Services cache or preferences corruption. The following article describes how to manually reset Launch Services -- the notes at the bottom of the article also provide information about the side effects of deleting each of the files involved:
Resetting Launch Services
If you prefer using a cache cleaning utility instead of following the manual procedure described in the previous article, this other article provides links to some utilities that can be used for troubleshooting and cache cleaning:
Resolving Disk, Permission, and Cache Corruption
The most appropriate utility for doing this probably would be Tiger Cache Cleaner, but you may also want to consider other utilities, such as OnyX, or Cache Out X, which are free. Whatever utility you choose, be sure to read this first:
Side effects of System cache cleaning
As an example, this is how you should proceed with OnyX:
1. Quit all applications.
2. Launch OnyX and enter your administrator password.
3. Click Maintenance. In the Reset section, check LaunchServices database.
4. You may uncheck any other pre-checked options if you wish.
5. Click the Execute button.
6. Restart the computer.
7. If the problem persists, try again checking the Links between documents and applications option in step 3 instead.