Default Open With won't change

Question

I am using ThinkFree Office as an alternative to Microsoft. It works off the same file formats as MS Office and therefore adds the xls extension to its spreadsheets, etc. etc.
I tried changing the default application using file->get info-> open with -> change all. It then asks me if I really want to change thinkfree files to use thinkfree (doesn't make sense). I select yes (actually it says continue, I think), and then it changes it right back to MS Excel as the default.
Bottom line: I can change individual files to use thinkfree, but I can't change the default.
My iMac came with an MS Office test drive, which I have removed, deleted, trashed, etc. etc.
Has Big Brother Bill put something on my machine I can't change? How do I get rid of this so my xls files will always open thinkfree (same with .doc and .ppt)?

Answer 1

Did you follow these instructions to remove MS Office test drive:
On your hard disk, open Microsoft Office 2004 folder that contains the Test Drive. Any documents you saved in the Microsoft Office 2004 Test Drive should be moved somewhere in your documents folder. 
In the Microsoft Office 2004 folder, double-click "Remove Office". In the Results window, choose Microsoft Office 2004 (including Test Drive) and then click "continue" and follow the prompts. 
http://www.microsoft.com/mac/default.aspx?pid=office2004td
You might also try this:
Navigate to /library/caches/com.apple.LaunchServices-xxxxx.csstore. You may have more than one with different negative numbers. Delete all of these.
Then navigate to ~(yourhome)/library/preferences/com.apple.launchservices.plist and delete this also.
Then restart. Let us know.
-mj
[email protected]