Latest Update broke MT, corrupted data?

[TMAlley]

After applying the last update, MT came up briefly and gave me an error message about my data source Yahoo.  It had a long error message with information to report back to you.  I didn't really know how to capture it so I decided I would just exit and start MT again.  Bad mistake.  Now MT wouldn't start at all after repeated tries.  I finally found a leftover MT process and ended the task.  Now I can restart MT an duplicate the error.  I saved the error in a snip (.PNG) (is there a better way?) but can't find a way to attach it. The insert other media .. existing attachment ...is not available for my account?  I can't type the complete message but the error header is:

Unable to start streamer Yahoo (4) Req: MTSettings.ProcessNewsSources,Error: The file or directory is corrupted or unreadable

AppVer: 1.0.9766.438

The Dashboard loads but does not show my existing portfolios anymore (shows 0 when I have 2).

I was thinking of reloading MT but didn't know if there was a way to save my existing portfolio data file and reload/import it like the old QuoteTracker???  I just saw the import/export functions but don't know if my backup is now corrupted or if there are multiple backups.  For now I'll wait till I hear more.  

[Jerry Medved]

1) you don't need to uninstall anything.  and your settings should be  backed up by MT.  Go to My Documents / Medved Trader / Backup folder and make a copy of the most recent file there PRIOR TO the update. (or just copy all of them) just in case.

2) I need to get the log file to see what the problem is. Please do the following: 

go to FILE / Export Settings. 
Leave the checkboxes already checked, and also check LOG FILE.
Export, then email me the exported file please.

And, what security software are you using?