Until recently Gallery was showing the pictures on my Picasa-account. Now the folder-names are shown and all the pictures are shown as black/grey-rectangles. Gallery is still able to show the pictures downloaded in a folder and knwos how many pictures each Picasa-folder contains.

First I cleared the cache and the stored info of Gallery. No result. If you click on a grey rectangle, the correct filename is being displayed as well as the correct properties (eg. camera-properties).

Last I formatted the user-data and had to set up all the user-accounts again. To no avail, Gallery is correctly showing all the Picasa-foldernames, but is not able to show the contents of the pictures.

I have the latest firmware installed and all software is up to date.

Any suggestions to get Gallery properly working again on my Picasa-pictures?