Steps to reproduce:
1. Change to task view (ctrl-3)
2. Click on any task in my customized (added columns, changed sorting) list view
3. 


Stack trace:
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1233205568 (LWP 7047)]
[New Thread -1428714608 (LWP 8003)]
[New Thread -1389364336 (LWP 7137)]
[New Thread -1370526832 (LWP 7136)]
[New Thread -1378919536 (LWP 7110)]
[New Thread -1345217648 (LWP 7076)]
[New Thread -1336824944 (LWP 7075)]
[New Thread -1295967344 (LWP 7074)]
[New Thread -1287574640 (LWP 7073)]
[New Thread -1279181936 (LWP 7072)]
[New Thread -1270559856 (LWP 7060)]
0xb7f62410 in ?? ()

+ Trace 92846

Other information:
Hello,

I am reporting this bug on behalf of Jan Mynarik, the original report can be found here:
    https://launchpad.net/distros/ubuntu/+source/evolution/+bug/75119

Using OS Version: Ubuntu 7.04 (Feisty Fawn - dev)
Gnome Version: 2.17.2 2006-11-14 (Ubuntu)
Kernel: Linux 2.6.19-7-generic #2 SMP Mon Dec 4 16:46:19 UTC 2006 i686

All other info provided can be found within the linked page.

Thanks again, Alex.