[ingo] unserialize error with ingo

[John H. Bennett III]

Hello, 
In my logs I am seeing this error:

PHP Notice:  unserialize(): Error at offset 151 of 211 bytes in
/home/httpd/html/horde/ingo/lib/Storage/prefs.php on line 44  

I'm pretty sure nothing has been changed on this system for a while.  What
info can I provide to assist in figuring out and/or fixing this error?

I am using php-4.3.10, and SME server (RH 7.3-based), pear modules are up to
date with the exception of Cache which is at 1.5.4.

Thanks,

John Bennett