I have a macro loaded spreadsheet that I developed about 3 years ago. Originally developed on Excel 2003.

I have tweaked the code over the years to improve performance and make it compatible with Excel 2007 (it will run fine in compatibility mode or converting to xlsm)

This file is used by many users with various platforms (win2000, XP, Vista) with no problems. Now I am starting to get Windows 7 users (running Excel 2007) and although it works it is painfully slow (takes 15 minutes for macros that should take seconds)

I helped one user remotely and checked the security settings within Excel and did not see any issues.

Sorry I can not upload the entrie sheet due to sensituve info, but if there are any general ideas to look at let me know and I can upload a cleaned portion for analysis if it helps

Thanks in advance for any suggestions

-Lee