I wonder if anyone here has any idea why picasa will not work on windows 7- 64 bit.  I copied all the picture folders and put them on the new windows 7 computer.  I then opened Picasa thinking it would LOAD all the pictures and nothing happened, it is just blank.  Every time I open Picasa on the new computer, it is as if I am installing it again.  Then it is just blank. I tried making a new folder on the new computer and copying and PASTING the pics in there thinking it may have something to do with the folders being copied from the old computer, but that didn't help.  I have done RESEARCH but can't come up with anything apparantley no one else has had this problem lol.. I don't know what else to check for.  Maybe an update??? Not sureWell, Picasa works fine on my 64 bit Windows 7 system. Try uninstalling and then downloading it again and reinstalling it.  Possibly you need to take ownership of the picture folders that you copied.

http://technet.microsoft.com/en-us/library/cc753659.aspx

Apparantly, I had the wrong path for Picasa to find the picture folders.  I had to put them all in the Picasa folder itself and now it is working fine.  Although, that shouldn't be since Picasa asks if you want it to scan the documents for pictures which is what I had checked.  I still have to FIGURE out why I had to put all the folders into the picasa folder.. Thanks for your help.
Margie