"Reinstalling the program will just copy the profiles and accounts as they were."
- Well-ll - what really occurs is that since the pointer to your Profile is untouched, the program just follows the yellow brick road. Again. No copying is performed.
Your initial post refers to both Junk and Trash. These are different folders. And the process that places an email into one of them may be different. Junk can be an adaptive process; Trash is via a filter. Are we treating an incorrect diagnosis?
"I have checked to make sure it ['filtering system'] is set correctly."
- What does 'set correctly' mean? No filters defined? No filters activated?
I concur with Fulvio:
1) Create a duplicate Account. This gives you another shot at bypassing any residual corruption.
NOTE 1: On the original (bad) account, change the setting to 'Leave message on server'. Otherwise an incoming mail will be read in before the new account definition even gets to see it.
NOTE 2: But, any FILTER is across all accounts. Whereas JUNK
may be account specific.
If this doesn't work, then it is time to ...
2) Create a new Profile.
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