Moved to new server, unserialize() error with EEFlickr.

Hi everyone -

I’m in the process of moving my site to a VPS at Slicehost. Everything appears to be working fine with one exception. EEFlickr is complaining with this error:

Notice:  unserialize() [<a href="http://function.unserialize">function.unserialize</a>]: Error at offset 0 of 22 bytes in /home/thenestedfloat/public_html/thenestedfloat.com/system/modules/eeflickr/mod.eeflickr.php</b> on line 163

Permissions are adequate for server writing on all directories, including the /system/cache/. I’ve tried deleting the eeflickr cache, uninstalling the module, restarting apache. No effect.

Does anyone know of any obscure server settings that might be causing the error? I’m kinda at a a loss.

Matt